More ideas from Emil
This probably isn't a geocache, but it would be a cute idea for a "not your typical fake log".  :)

What better way to teach your kids about money management than by giving them a piggy bank? Here are some creative piggy banks your kids will love. These piggy banks will serve as a teaching tool for fiscal responsibility.

Anker, Holzdeko | HOLZLIEBE-ISERLOHN | WOHNACCESSOIRES AUS HOLZ | MADE IN GERMANY

Anker, Holzdeko | HOLZLIEBE-ISERLOHN | WOHNACCESSOIRES AUS HOLZ | MADE IN GERMANY

Wenn man einen Gartenschlauch hat kann man aus einer Plastik Flasche ganz einfach und günstig eine Garten Brause für den Rasen basteln

This would be a great way to water the garden - Make your own sprinkler for this summer. Use duck tape to attach to hose and just stab holes into a 2 liter bottle. {makes so much more sense than those cheap sprinklers that break after a week's use!

Erinnerst Du dich noch an die Piranha-Pflanze von Super Mario? Die kannst Du jetzt ganz einfach nachbauen, und zwar als Kratzbaum für deine Katze!

DIY Piranha plant - Super Mario cat bed/scratching post (I think I would fill in the pot maybe?