Purse handles and frames at Wong Wian Yai 

This is the place for accessories to make bags and shoes. Most of these shops on Soi Sarapi near Wong Wian Yai are open from 8:00 am to 6:00 pm and are closed on Sundays. Products include PVC, leather, buckles, beads, chains, cord, feathers, fasteners, sequined fabric, rhinestone fabric, zippers, zipper pulls, shoe soles and heels, awls, needles, heavy thread and industrial sewing machines. There are embellishments made of leather like little flowers and shapes. The prices are wholesale and items can be made to order. The closest BTS station (Bangkok Transit System) is the Wong Wian Yai skytrain station, and the area is in walking distance of the skytrain.
Wattana Pu Leather Center has genuine leather, imitation leather, embossed and printed leather, patent leather, suede, sequined fabric, fur fabric, bag and shoe accessories and decorations, and heels. They sell feather fringe and trim by the yard.
Wattanaporn Panich has rings, buckles, locks, hooks, zips, frames, eyelets, rivets, key rings and buttons.