I'm fairly certain the 2ds can play DS games as well, there is a really cool Thor game from Sega based on the first Thor film, it's just a 2d beat um up type thing, they might really enjoy it.
And I would agree if you have something of value which you're not using and think someone else might... you should reach out and send them a PM :D Also sorry I got your type wrong but that's cool that you don't need the stabby stabby! I'm 4 jabs a day and it kinda sucked to get used to at first but now it's life for me and I love living.
Why not check me out on youtube and help me on the way to 2k subs over at www.youtube.com/stormcloudlive