This SLJ article (plus its supplement “More Thrifty Library Hacks”) is an awesome curated guide of tips on sprucing up youth library spaces. The best part is that all of the tips are budget-friendly, and most are DIY!!
I think these ideas are a great way to make colorful updates in any youth space, and also possibly incorporate staff + students who love to DIY. I also think these tips, and any variations on them, could work both in a school or public library setting.
I especially like the ideas of turning large buckets into stools, fixing torn furniture with duct tape art, and making stained glass designs on library windows with tissue paper. There are also smart budgeting tips, such as how to print poster sized images without spending the hefty printing fee that comes with large-format printing.