I've got a few hundred (modern) bobbles and have been looking for a way to display them. No room for bookshelves in my "cave", but I don't trust shelves hanging on the wall since I'm worried they'll bobble themselves right off the edge and fall onto the floor. Just bought 14 of these from IKEA, by my calculations they should hold 8-9 standard sized bobbles each and I'll feel like my little guys are safe behind a bar without being obscured.
https://www.ikea.com/us/en/catalog/products/60412300/