DS has recently gotten really into puzzles. We got him some new ones at Christmas and those got too easy for him, so we got him some harder ones a few weeks ago, and those are too easy now too. He seems to be content doing the same one over and over even though it takes very little time, but I'd like to keep challenging him. Also, its great independent play when it takes a while

But I feel like if I keep buying new puzzles I'm going to a) go broke and b) go insane from all the new toys. Does anyone have a solution? I did some quick googling and haven't found any evidence of puzzle check outs at our library or a "netflix of kid's puzzles". Wondering if anyone knows of anything I'm missing or has other creative solutions...