When my daughter got married I had squares of fabric with freezer on the back of the squares and during the time people arrive and mingle around I handed out the squares with a suitable pen and had them write a message or just sign their name. Later I gathered the squares and took them home and made a quilt. BTW-I cut the squares about 1" larger than the square needed to be for the quilt. This was much easier than packing a big quilt around and getting signatures. Good luck on your quest.