Suncatchers seem old school to me, but Quingawaga gives them new life (or at least super geeky life) by having the lines form chemical structures. Your current choices are caffeine, dopamine, and theobromine (do you know which is which? or what they are/do?). Previously there have also been serotonin, and resveratrol. Found at Quingawaga's Etsy shop.