DIY Ring Holder: Since all the tutorials I found meant a LOT of cutting, rolling and gluing, I decided to do it MY way. Repurposed materials: a cheap sponge, a discarded tin & fabric scrap. Actually used my fingers to tuck the fabric instead of the knife as shown. Didn't bother with glue. Formula for fabric size: D+D+W+1"= fabric Width by D+D+L+(number of slits X 1")+1"= fabric Length.