Have you seen these in Target recently?
My boys have repeatedly asked for them, and they have so many themes you will easily be able to make every child you're buying for this year happy...
If you've been around little kids much you know two things they're big on - #1: Hanging things on their walls, even if it's stickers or hand-drawn pictures and #2: NOT being in the dark.
3DLightFX solves both of these issues and it's a reasonable price so it won't break your Christmas budget, either. You can get them at Target online for as low as $19.99 and on Amazon, as well.