My station will be Dip Dots. The kids will use Q-tips to paint 10 dots inside of ten frames. Another classroom will have 100 second challenges like how many sit-ups can be done in that time, another classroom is running a coin toss activity and another a roll and tally dice activity.
I gave the roll and tally recording sheet a much-needed makeover. You can grab it free at my TPT store!
If you've already had your 100th Day, maybe you can file it away for next year! :)