100th day is coming!

We will be celebrating our 100th day in a week, so I'm trying to gather some new, fun activities! I plan on having my kiddos make themselves at age 100 (with cotton balls for hair) and then write about it. I usually have them roll a dice 100 times and tally which number they roll the most, some estimation activities, etc... We will also make 100th day hats and/or glasses :) gotta be festive, you know! If you have any ideas, I'd loooove to hear them :)