I'd wish for a large magic trunk that, at my request exclusively(verbally or mentally) unless given permission, would create and dispense any kind of diaper, padding, poof, Etc.
Any design, thickness, Sap/pulp ratio, # of+width of tapes, backing material, custom packing+amount in each pack, Etc...
It would create any kind of diaper right from your mind or dreams if requested and would dispense unlimited amounts of whatever diaper you desire.
Then since it does infinite amounts of any kind diaper for free I'd create my own line of designer super poofy diapers and price them super cheap so anyone could get them. Then I could take special orders and commissions for custom diapers too.
Also works as a disposal box. Just toss my soiled diapers in the box, close the lid and poof, it gets rid of any dirty diapers and the box staying 100% sterile and clean forever no matter what, inside and out. Depositing dirty diapers to a nearby sun, but not ours, cause that would be rude to do to our sun.
Some would say that this sounds like wishing for more wishes. Technically just wising for a magic infinite diaper dispensing box, not more wishes.