Best things to do with a euro

I'm making a list. I'll be checking it twice, but spending it only once. I'm collecting a list of the best kid-friendly things to do with a euro. Here it is so far:

6.) Go to a kinderboerderij.
5.) Go to a speeltuin.
4.) Shop at a vlooienmarkt.
3.) Shop at the kringloop.
2.) Get a kunststof bloemetje to wrap around the handlebars of your fiets.

And my favorite for last:

1.) Get an ice cream cone at the gelato shop on the Groest in Hilversum.