3 year old birthday party ideas welcome!

It is GS's 3rd birthday in August (my doesn't time fly!) so after a bit if umming and aahing about what to do we've decided on a tea party at home for close friends and family and their children, there will be about half a dozen or so toddlers so I want to put on a few party games, make some party bags etc but desperately need ideas please!!

Anyone got any links to blogs or websites with ideas for toddler parties, things I can perhaps make for the goody bags or games? Anything you've tried yourself that went down well? I'd be very grateful if you could share!

I already have in mind to put on a buffet of traditional party food; homemade biscuits & cupcakes, Angel delight & starwberries, sandwiches, sausage rolls, pineapple & cheese on sticks, homemade pink lemonade, etc. I'll be roping in family to help me prepare it, and then it can all be ready before guests around so I can mingle better without rushing around. Going to get a cool box and pop ice in it to keep adult drinks cool so people can help themselves. I remember last year we had a BBQ at August bank holiday and I seemed to spend most of it in the kitchen fetching drinks, cutlery and cloths as Mr G.T was busy guarding the BBQ, so want to avoid that this time around!