3 year olds and 4 year olds are now at the age where they enjoy simple crafts, activities and games so keep it simple. Don't over do it and exhaust yourself when planning the party when your kids will have fun with craft and activities such as:
Foam Art
Foam art is very popular with the little ones. It is something they can do with little or no help at all. Many stores sell many varieties of foam art. They can make pictures on foam cards, foam bookmarks, foam hats, etc.... Also there are so many options of foam stickers out there that if you are having a themed party I wouldn't be surprise if you found something to go with that theme!
Making Leaf Prints
Depending on the time of year this would be a great project for the little artists. All that is need is a good variety of leaves, paper and crayons. Give each child a piece of paper and a few leaves. Have them put the leaves under their piece of paper and use the crayons to create their own leaf prints. They will love this!
Coloring Pages
Print out some coloring pages for the kids to color with crayons. This is a great activity to do at the beginning of the party while waiting for all the kids to arrive and at the end if there is still time. There are a few great coloring pages I have linked to a couple posts I have in this blog. Lots of toddlers favorite characters.
Trace And Draw
Have the Birthday child lie down on a big piece of paper and trace out his body. Once you have the outline of the Birthday child finished have all the children draw and color in the outline. This will be a wonderful keepsake for the Birthday Child!
What is a party without games? Here are a few ideas of easy and fun games everyone will enjoy:
Pin The Tail On The ? - If you are having a themed party, you could draw a picture to go with the theme. For instance, my daughter had a pony themed party and I drew a My Little Pony without a tail on a piece of bristle board. The birthday child can help to get it ready by helping you color the picture. To make the tails you can use string or ribbon. I used two pieces of curled ribbon and taped them together.
Musical Bumps - Have the kids move around and dance. When the music stops they are to sit on the floor. Last one to sit is out.
Simon Says Have an adult be the caller. The caller will tell the kids to do something. For example, Simon says touch your nose... Have the caller do this a few time by telling the children to do different things. Then tell the children to do something with out say "Simon Says". Whoever did it is out and the children who didn't do anything keep playing.
Dart Board Game - You can buy a little velcro dart board at some dollars stores for a cheap price. Have the kids throw the darts at the board to see who can get the closest to the bulls-eye.
Scavenger Hunt - This is a great game for a themed party. For instance if it is a pirate themed party the kids can hunt for chocolate coins. Because of their age you don't want what the kids are hunting for to be totally hidden. Atleast make them half hidden. Give each child a bucket and get them to go on the hunt. Whoever finds the most wins.