Birthday party for 2 yr old..

[pregmummy]

am thinking of doing a morning party for my 2 yr old instead of usual afternoon - will this work? - thinking about 11 til 12.30 - does that sound long enough?
If quite a few turn up, any tips to amuse 2 yr olds? - House not huge.
many thanks

Just toys and things to keep them entertained, they will probably just run about and amuse themselves to be honest, some pop music and a glass of wine for yourself.