I get the resin in Hong Kong, but you can find it in craft stores, it should be expoxy resin. It comes in 2 bottles, one is a resin and the other is the hardener. The beads were from craft store, like Michael's in the bead section.
I was also thinking if you put a tiny spot of superglue in one end of the straw and let it set then you can put the straw into the drink straight away as the resin wont have anywhere to go.....i think this will work i hope it helps you
yeah, the drink holder. i've seen a tutorial on youtube where they bought cheap pens from the dollar store and took off the top cap and threw the pen away and used the top as a cup, which is pretty expensive and wasteful, even if it made the most perfect cup. i didn't know if you had something better that you've used.