Would they fit on a 4' x 8' sheet of foam board? Or even two hooked together side by side with duct tape?

Look for the large sheets of foam board in the insulation dept of a Home depot sort of store and they can be hung from the corners to roof rafters with twine. They have tin foil on one side. They are very light. You'd have to face them with a piece of flannel but they should work. They cost less than $5 a sheet.

Just a thought.
Linda

I often lay my blocks on my bed, nice level and easy to see, my daughter often helps me decide the arrangement. What I do when I like what I have is take a picture of the layout. Then printed it out as a reference. I have also pinned lables on the rows of the layout and then stacked them in order across the row. I like the picture the best but the other worked. Jayne

I like using flannel back vinyl tablecloths. They are cheap, you can tack them to the wall or lay them on a bed or on the floor. Blocks stick to the flannel backing. You could tape a couple together (on the vinyl side, with duck tape, perhaps) to make one large enough for a very large project. The largest ones I've found are 60" x 120".

And I can roll up the tablecloth(s) and all the blocks stay where I put them, ready for me to unroll and continue my project later. I bought several at Target for about $6 each. Also, Joann's (and probably other fabric stores) sell flannel back tablecloth by the yard. However, I suspect buying the finished tablecloths at Target, Walgreens, Dollar Store, etc. (where ever you find them) is probably cheaper.

CMC

I've also laid them out on the bed,then stood on a step stool and took pictures til i got it the way i wanted it.
Kathi

Thank you for all your wonderful suggestions. I can't wait to try them out :)

It's amazing how creative we can be, when we have to :)