[quote name='Strell']Kmart, Target, and Toys R Us all generally have deals on LCD screens for the PSOne. Those would be your best bets.[/QUOTE]
If he's looking for a bigger size one, that would be the best option that'd I agree with, but otherwise I wouldn't know about those small controllers with LCD screen built in them, I haven't seen them in a while. Have you tried looking on eBay?