Things you need for this DIY:
✝ a bra
✝ a small knife
✝ stretchy fabric (optional)
about $5 worth of studs
This is fine to wear in public...right?
Start by making a little slit for the stud tine with you knife.
Add the stud and bend the tines down.
When I was done I cut off the sides of the bra.
I added two pieces of stretchy lace. You can totally skip this part if you want. In fact, if you have big tatas, I recommend skipping it. Wardrobe malfunctions are not so cute.