OBLA DI OBLA DA LIFE GOES ON, BRA!! *Pop* I'm in a happy mood! Which I shouldn't be because I over slept and feel reasonably ill, but eh. xD
I can't really think of anything to write, so here are some random words. Pickle. Ocelot. Tuba. Calender. Lightbulb.
I think you need about four hooves to get a good grip on a lightbulb, so I'd say two ponies. Though MLPonies seem to have pretty flexible marshmallowish hooves, so maybe one is enough.
Ponies seem to have magical suction cups on their hooves. I don't thing we're supposed to think too much about it.