Origami is a little tricky for them because they don't have the dexterity, but with a little help they made origami bookmarks and christmas trees as an activity. They had fun with it. Folded Paper Heart Book Page Marker – DIY
Photo of ribbon bookmarks with felt ends. Example of blanket stitch. Something like this would be a good idea for a beginning sewing project. They might make good gifts for a child to give or to put in a book?