Imagine combining 2 great classics:
 Mini Golf
 Skee-Ball
 and you get Skee-Golf
 The idea popped into my brain suddenly... but upon searching, I found one generic
version of it already.  However, it didnt quite play exactly like skeeball either.
 I only post this, cause I believe it would be fairly easy to build compared to a
real skeeball machine, and probably still provide a lot of fun.
 You could also roll or fold the long floor section up when not in use... which is
good for places which are too small for a complete SB machine.