Tennis ball machine, Deadly Projectile Launcher, Death at variable speeds device... it has many names. But the only one that seems to exist outside of my head is tennis ball machine.
^_^
I'm like that song stuck in your head; I come and I go, but never truly dissapear.
'Hush, hush!' I whispered; 'people can have many cousins and of all sorts, Miss Cathy, without being any the worse for it; only they needn't keep their company, if they be disagreeable and bad. — Emily Bronte, Wuthering Heights