Hi,
Trickey one. You'll never get it looking as new, but try this patch up.
Do glue the crack as best you can, then over the top of the glue put a layer of 'Duct' tape as this is strong, flexible and will stick to almost anything.
After i suggest you get a blanket or towel to rest the base on to try to reduce more impact while playing.
Hope this helps??
Lest, October 2008