1She likes to tinker with old computers and fix them up to sell online.
2Do you know how to tinker with a bike to make it run smoothly again?
3He spent the whole weekend tinkering with his car engine, but it still doesn't work properly.
4If you want to tinker with electronics, you'll need to buy some special tools and equipment.
5The inventor spent years tinkering with different designs before she finally created a working prototype.