They appear to be sampler blocks to me because of the different variety. I don't think there is a rhyme or reason to them. Are they going on top the the appliances or on the wall above each one? My laundry room is the only place there isn't a quilt. As for me, I use a doggie training pad (pee pad) on top of the dryer to soak up the drips from detergent and softener. Easy to change out.