I love bobby pins, I use them every day and also loose them a lot so I found most of my glittery ones were missing. The glitter ones are my favorite so I decided to make some of my own.
Pick out your bobby pins and clip them to a paper towel or something to keep them in position.
Paint them with glitter nail polish and put clear coat over it. The nail polish will make them stick to the paper towel a little bit and the glitter can get pulled off. It only happened to a couple of mine so I just put them on fresh paper towel and repainted them.
Let them dry and they're ready to wear :)