You may want to call this craft silly posts and avoid using totem poles in this culturally suspect context. Explore these sites for a serious look at humor. Here are lots more jokes to choose from. Try the long jokes as a source for short stories to tell. Here are directions for making really big silly hats.
Children can make their own or it can be a group project.
You'll find lots of silly songs here. Some you can almost remember and a few that will be brand new. This site offers music as well as lyrics to some silly songs. Here are some links for circus units that offers lots of good ideas for activities and fingerplays. The above links lead to program plans for celebrating his wit and wisdom.