I tried the pink tool with three grades of rhinestones: acrylic from China via Amazon,
Preciosa Czech glass, and Swarovski crystals. I used all of these stones on my boa balls.
I had a bitch of a time loading the tool with acrylic stones at first. When I was ready to throw the damn thing across the room as stones kept falling out, my husband took over. He had no problem loading it. I was pulling back the metal plunger and trying to pick up the stones with no internal tension in the tool. He discovered pretty quick that the tool loaded up pretty easy if you stabbed the stones (gem side up) one after another, much like spearing trash with one of those handy sticks. I calmly took over spearing and stoning duties. To use efficiently, I put down a dot or strand of glue. Holding the tool like I was going to stab someone, I used the thumb tab to release individual stones onto the glue. I recommend using silicon fingertip covers or a toothpick to move the individual stones into the perfect place. I also recommend checking the spearing tip and the plastic area that holds the stones for glue before you reload the tool. Pick that stuff off to make your life better.
I then tried loading the higher quality stones (glass and crystal). The tool would jam, the stones would turn in the barrel, the tip would pop off, I would swear. No matter how many times I tried the better stones, it would jam up and screw up if I managed to load more than 10 stones. I would not recommend the tool for the nicer stones because it becomes a waste of time. (I think the better stones are cut rounder so they flip easier. The acrylics have a flatter top so they rest on one another very nicely inside the tool.)
You can get the tools online from Amazon, or you can hit JoAnn Fabrics with one of their fabulous coupons. They cost about $20 with no discount. Don't expect them to be miraculous, but they can help with the rhinestone process if you have reasonable expectations.