Rainbow Triangles BOM

Rainbow Triangles Block of the Month Program

Rainbow Triangles, Modern Triangle Quilts, by Rebecca Bryan

2018 Mystery BOM

I'm excited to re-introduce the Rainbow Triangles Block of the Month program! This BOM program ran as a mystery BOM during 2018, and lives on as a regular, non-mysterious, program. 

The Rainbow Triangles BOM quilt combines my two loves: rainbows and triangles! 

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Rainbow Triangles BOM, Rebecca Bryan


  • Exclusive Bryan House Quilts Pattern - You'll enjoy exclusive access to a Bryan House Quilts pattern. They're real and they're spectacular! 
  • Monthly PDF printable pattern - Each month, you'll get a new instructions you can download and print. 
  • Complete Video Instruction - Each month, you'll have access to complete video instruction for that month's blocks. 
  • Color Planner Worksheets - Follow my meticulously planned colors or use the Color Planner to shop your own stash. 
  • Color Organizer Stickers and Worksheets - I'll have printable stickers and organizer sheets to help you stay organized.
  • Optional kits will be available for your convenience.
  • Connect with others! Post in the BOM's Discussion Boards or enjoy exclusive access to the Rainbow Triangles Facebook Group to show off your progress, to connect, and get and give additional help and encouragement. 


Welcome Notes, Program Introduction, and Color Planner are immediately available on the "Welcome" section as soon as you register. 

Rainbow Triangles Patterns and Videos for Months 1 - 12 The program is set up to run as a monthly block of the month. But since the program ran live in 2018, going forward you'll have access to the entire program as soon as you enroll. So you're free to set your own pace. 

Or! If you choose to pay by month, the program rolls out monthly. 

Here's the general overview: 

  • Months 1-5: We'll be working on the Triangle Blocks from Modern Triangle Quilts.  
  • Months 6-11: We'll be working on piecing the Triangle Block pieces into square and rectangle blocks to begin to puzzle our panel together.
  • Month 12: Yah! Let's get that quilt top assembled and let's get to celebrating (happy dance!). I'll also be showing you my coloring tricks. 

Bonus Finishing Tips and Tricks will be available after Month 12.  

Rainbow Triangles BOM, Swiss Group

Lots of Color!

The Rainbow Triangles BOM uses 50 different fabrics to create a dynamic rainbow.

That sounds pretty intimidating! But no worries, I have done all the color guesswork so you don't have to! I provide you a complete color guide. So you can use fabric of your choosing, e.g. batiks, prints ,or solids. 

You can make it doubly easy on yourself by pre-ordering a kit.

Order a Kit

Testimonials from the Program

"Love the 2018 BOM. From start to finish the process was very clear. Videos supported the written materials and the sharing among people from all around the world added additional support and inspiration."  

- Toni 

"I had so much fun with the 2018 BOM! The email reveal at the beginning of each month was like getting a little present! Some months were challenging, others were easy-peasy but the final outcome was creative, colorful and beautiful. Rebecca’s attention to detail is incredible...handouts, videos and even a place to post our progress! She gave me so much more than I expected! "  

- Colleen

"BOM 2018 is my third class with Becca, one of my favorite quilt teachers. Her projects are interesting and inspiring and her commitment to sharing her techniques, ideas and even her rare mistakes, makes each session a learning time. I’m looking forward to 2019 BOM!"  

- Randolph

"The Rainbow Triangle BOM has been a great way to learn new types of piecing to create an often overlooked block shape, triangles, with everything from handouts to video instructions. It has been fun trying to work out each month how the different coloured pieces will go together, and the end result is a gorgeous, unusual and vibrant quilt."  

- Katy 

"I'm new to quilting, so starting a quilting project was daunting for me. But along came the Rainbow Triangle BOM! I signed up and have thoroughly enjoyed the whole process. Plus I will have completed my first quilt! I found the lessons were very well organised. The videos are great as you can actually see the process. Rebecca is an awesome teacher, very well organised and thorough. I have learnt so much and can't wait to start the 2019 BOM."  

- Lisa

"The 2018 Rainbow Triangle BOM has been pure enjoyment. I took a class previously online with Rebecca and wanted more. And now I have signed up for the 2019 BOM challenge to continue with the enjoyment. Rebecca is a very good teacher, thorough, charismatic, approachable. Would recommend anyone at any level of sewing expertise to join in!"  

- Marlene

Payment Options

One Time Payment


Pay Monthly

$6 a month for 12 months

Frequently Asked Questions

How long is the program

The BOM program is set up as a 12 month program. 

What techniques are covered?

 We'll cover my signature techniques: Freezer Paper Piecing and Using a Trimming Template. We'll also cover techniques needed to assemble a half-square triangle quilt. 

How do I access the BOM website?

The BOM program is set up as a virtual workshop. Once you sign up you will have access to the course platform. You'll be able to set up a profile and say "Howdy!" in the discussion boards. 

Every four weeks the next round of monthly videos and PDFs will be made available. You'll receive an email but you can also just go straight to the BOM course platform.

What supplies do I need?


You'll need a copy of Modern Triangle Quilts. (Sold separately. Note: you'll find a coupon code on the "Welcome" page after you register.)

Access the Materials Lists for the 72x72'' and 60''x60'' sizes by clicking here.

(Optional) You can pre-order a kit here.

What skill level is required?

Since I will be posting monthly instructional videos, I'd say a confident beginner can participate. 

Beginners! Check out Lisa's testimonial from above. You can do it!

Will this pattern be available for sale apart from the BOM? 

No, this pattern is exclusive to the Rainbow Triangles program. 

How long will I have access to the BOM?

You'll have lifetime access to the workshop. So, feel free to work at your own pace!

What are the project specs? 

The quilt finishes at 60'' x 60'' or 72''x72''. I'm showing the larger quilt in the above picture.  

We're making 25 right triangles from Modern Triangle Quilts.

How do I connect with other participants

Post in the BOM's Discussion Boards or enjoy exclusive access to the private Facebook Group for the Rainbow Triangles BOM.  

If you're more of an Instagram person, simply use the hashtag #rainbowtrianglesBOM to connect.

Where can I buy a kit?

Kits are available on a pre-order basis. 

I stock a few kits in my shop. 

You can also contact Stash Fabrics to order a kit. 

Take home message: If you want a kit, we'll find you a kit. 

Ready to join in?

Join Now!