hmm...they sound like they would work. They might not work great for a trifold that you would just lay in a cover, because the thick part might be a bit too wide...then again, they might work just fine, depending on the shape of your baby and the type of cover. But they sound like they would be fine for an angel wings fold that you would pin/snappi (this method works much better at catching poop then a trifolded dipe anyway). If it turns out that you wash them and then don't like them you could use them for burp clothes, changing pads, or cleaning rags, or they could be your back-up diaper to use in a pinch if need be. (its nice to have back-ups for unexpected events, like if you lose power and can't do laundry). HTH!
Jess, married to awesome hubby Tim, mom to DD1 (6-06), DD2 (2/08)