These have been on my list for awhile. I first saw them here at Happy Together, but was reminded of them here at Counting Coconuts. Mine are sort of a combination of the two versions.
I have the number set finished. Letters are next.
For 10 (and later when I made the numbers got to 15) I sewed two pieces of sheer ribbon in between the 1 and the 0 to hold them together.
They have a layer of 'warm and natural' inside.
The letters will have felt on the back so they'll stick to the flannel board at school.