Toys are pretty easy to come by. Look at dollar stores, look at everyday items like pop top lids, milk jug rings. I have found things looking at Walmart in their party section and found cupcake labels, halloween plastic hands, skulls.
Always make sure things are plastic and not metal or painted. I have found plastic chains at Michaels and various other sites like
RockportRoost
Dollar stores sometimes have feather boas,silk vines, you never know what they might have.
I have found pouches on ebay, as well as some supplies for making toys. Everybody's gliders like different things. Some like hanging fleece vines, but ours really don't. They seem to like things they can chew and carry around. They have a little toybox of plastic army men, pumpkin stickers, lids, rings, plastic hearts. etc. In the beginning, just try a few small things and you'll soon get an idea what they like.