What sort of activities would you do at an indoor party for 3-7 years old?

[KindergartenKop]

My ds2 is turning 4 soon. What activities would you do for him, a few 3-4 yo friends and the friend's siblings?
My current list consists of:
Decorate party bag with stickers
Top pizzas for tea
Disco with glow sticks

Party is at home by the way!

Roll out the biggest roll of bubble wrap you can find and let the children jump on it.

Make the party bag decorating more crafty - pens, pencils, googly eyes etc. Sticker will only take seconds. Get them to put their names on, use the bags to hold prizes.

Musical statues/bumps/pass the parcel

Little treasure hunt

That game where you have to eat a bar of chocolate with a knife and fork, wearing gloves.

Pin the tale on the donkey

Decorate cupcakes

Disco for most of it
Musical statutes
Colouring
Eating
Races - dressing up ones etc

Piñata

As a veteran of at home parties I would say pass the parcel is a must. At that age they have teeny tiny attention spans but pass the parcel maintains their interest for quite a long time - relatively.

Yeah, Pass the Parcel and other old-school party games are ideal for that age. A balloon drop is fun if you have the space?

Ooh great ideas, thanks!

Limbo dancing under a broomstick is fun

Book a soft play... after several years of parties at home it's so much easier, less stress and your house is still in one piece at the end...