The Joker had both his hands in his pockets, and seems slightly fidgety. Well, more so than usual. "See? Aren't they funny? People love a good gag...there's also snakes in cans, fake doggie do...and I can easily get the other items, too. For, ah, under the counter."
No, they are not toys from Victoire's shop, Xel. As for what's in his pockets, he might have to be poked a little.