I have another nice Amazon deal for you. Right now the OUT! Disposable Male Dog Diapers 12-packs are on sale for $2.35 when you subscribe (or $2.47 without subscription.) That works out to just $0.20 per diaper. Here is the link to get yours:
OUT! Disposable Male Dog Diapers 12-packs – only $2.35 while supplies last at this price when you subscribe!