Oksewglad, you said exactly what I thought about Boop56's doll crib. I love the suggestions you gave for little quilts. I completely agree.
Boop56, I hope you will post photos when you make some quilts for it.
I also was thinking that a little stuffed mattress made out of blue ticking fabric stuffed with dryer lint and then tucked with small buttons would be cute too. Course, you could make a pillow that way too and then a cute quilted pillowcase for it. Wow, lots of possibilities. :-D See, we are all just little girls inside, wanting to play again! :-D