Baptist Bucks, Presbyterian Pennies, Lutheran Legal Tender, Jehovah's Witness Wealth?

Last night I told Jadon I'd give him the money he got back for our being able to resell his "contraband cellphone" (another story in itself!) at a slight loss, & minus a very friendly $5 "advertiser's surcharge" for my putting out the Craig's List ad and going out to meet prospective buyers.  So while he spent about $55, he was getting back $40.  I asked him in which denomination of bills he'd like his money (10s or 20s of course), & he joked that he'd like his money in 50s or even 100s.  I quipped back that in the case of 100s, we could just round the amount to the nearest $100 then, but of course he didn't want that.  Later as we entered his room he joked back, "I'd like my money in Jehovah's Witnesses, Lutherans, Baptists, and Presbyterians" -- perhaps these "denominations" are the most inflation-proof?