I like all types of advent calenders. When I was a little girl we used to have the ones with tiny chocolates. That were never big enough nor did the days go by fast enough to get to the next one. Let alone get to Christmas!
Here are some modern colorful ideas that I found on Pinterest. The crystal ones are by Mr Printables, the Robots that would be great for a boys family is by Next to nicx, the confetti popper one by You are my fave, the colorful boxes by Studio DIY and finally the matchstick box one by Zoe de las cases.