Went to Toa Payoh for lunch today. Popped into the Value Dollar shop at the MRT and found a nice round tin which fit the UMD too. It was actually filled with some aroma candle. So for only $1.05, I bought the tin, melted and threw away the wax, then lined it with the leftover soft styrofoam from yeasterday. So now, I have two cool tins!