I'm currently removing the teeth off of gears from bikes and painting them to look like ornaments on a Christmas tree.my goal is to decorate studs like this used to keep homeless people from sitting down and taking a rest. I haven't planned out how to quickly attach the"ornaments" yet...I have a few hundred of them to apply so tips or criticism is welcome

What is that gonna help? That isn't gonna help the homeless people sit down and rest, it's just like the "pride" anti-homeless spikes. Either roll out a carpet on top of them to make it so people CAN sit there or stop stroking your own fucking ego on teh dollar's site.