I make my own dance jewelry and hair accessories, and I sell them for a low cost!! Since they are all Swarovski with the highest quality it can seem pricey, but i can assure you that they will last better than ones purchased elsewhere.
Personally for me I do not like GemTac because is dries slowly and it does not cure all the way most of the time so it remains stick and can affect your jewelry after a while.
If you wanted more information send me a message and I can give you a link to my etsy and ebay stores :)