the variety of official merch centered on the younger Bat-heroes is ridiculous in the best way. If by 'batboys' you mean Robins and the other kid-squad (Dick, Jason, Tim, Damian and the like), you can find them everywhere: Funko Pop! has a sprawling selection of Robins, from classic red-and-yellow to Damian’s hooded look and multiple SDCC exclusives. McFarlane Toys' DC lines and older DC Collectibles (formerly DC Direct) made a ton of articulated figures covering every era of Robin plus Red Hood and other proto-Batboys. There are also Lego minifigures and sets featuring Robin(s), which are great if you like diorama-play or displaying scenes from 'Batman' cartoons.
For display-level pieces, companies like Sideshow, Prime 1, Kotobukiya and Bowen Designs have produced statues and busts that include Robins or grouped Bat-Family pieces — these range from mid-priced ArtFX-style statues to museum-grade, limited-run statues that command higher prices. Don’t forget convention exclusives and retailer variants: SDCC, NYCC, and retailer-specific colorways often include unique Robins. Apparel and lifestyle gear is abundant too — licensed tees, hoodies, pins, enamel badges, backpacks, and caps. There are even officially licensed prop replicas and cosplay-ready items (cowls, gauntlets, utility-belt kits) that come with authenticity tags or licensing info.
On the paper side, official comics, reprints, graphic novels and special editions are staples: key issues like the classic 'Detective Comics' runs, landmark Robin-centric storylines, and deluxe hardcovers often spawn tie-in prints and artbooks. Trading cards and collector card sets from companies like Topps or Cryptozoic have included Robins in their DC runs. Video-game tie-ins (figures, statues and collector editions for titles like the 'Batman' games) often include the younger heroes, and music/stage tie-ins — for example, 'Bat Boy: The Musical' has its own cast recordings and posters even though it’s a very different usage of the 'bat boy' name. If you’re hunting, check mainstream retailers for mass-market stuff and specialist shops, auction sites, and con booths for rarer signed or limited pieces. Personally, I rotate between cheap Pops for shelf-filling and one statement statue that always makes my shelf feel like a mini gallery — it’s a fun balance.