The glass slippers, very simple, somewhat silly, also depending on design, but, i see that stuff working and being sold quite well to be honest. Often as cheap useless thing to gift people, but around the beach and resorts, with tasteful design, picknicks, yes, i think it will sell well. This should really be done. Why not smack this on the table at Shark Tank Australia ? The sugar straw, should get a somewhat better more serious design, but yes, it can probably work and cut down on quite some waste. But there may be simpler solution. But it being a stirrer and sugar holder, sure.
