[PPC] Uses for G4 455mhz and 600 mg ram.

Hi
I just aquired a Mac G4 with 455mhz CPU and 600 mb ram. Managed to install Lubuntu PPC but it is to slow even for my 3 year old son who needs flash.

So I am looking for ideas as how to use this machine. The case is in really good shape.
My idea is to use it a music server for the back yard. May be have it connect to a NFS share on my main server in the house and connect speakers to the G4. I would use mpd on the G4 and android remote software to control it ( can someone check if mpd is in PPC repo, I am at work)
My only other idea is to gut it and turn it into a pc.

Thanks