Needle felting could look really cool especially if you do a contrasting color and make it some sort of design like, I don’t know, stars or hearts or something. Something that’s your style or personality. That could be really cool.
Eta: i am trying my hand at some visible mending for some old sneakers. Never done it before, really, and I don’t know embroidery stitches so it is embarrassingly bad, but the shoes are just for in the backyard and if they go horribly wrong no one will see but at least i get some practice. My husband is shaking his head. “Just buy some new shoes already.”
Me: that’s soooooooo not the point! Haha