I bought a 2nd hand jacket which was plain blue. I handstitched some details, quite clumsily, my stitching aint so great, but I just carried on regardless. I used embroidery thread. I then sewed on my handmade buttons. I hope my sewing teacher from school never inspects it, but I like it.
I made these brooches by machine zigzagging fancy yarn onto thick black felt, then added my handmade buttons. I put a safety pin on the back as a fastener. I ended up making lots of them as it was quite hypnotic doing the spiral zigzagging! .