Half an air hockey puck

Our local primary school needed some more pucks for air hockey, I saw the lovely design by 3DPDude but I didn't trust my printer to print this without supports - and it was too tricky to get a perfect finish for the ones I did print with supports (difficult for me to get a smooth cut and sand it all down etc.).

I figured I'd halve it, print it twice and glue the two together with a thin layer of mitre bond glue - printing now, but I'm sure it'll work.