You can make it yourself at home with wire and cola bottles. This will make full use of energy and add a lot of anger to the home. It's a good choice, just pay attention to the choice of plants, some plants can not be such. Ivy, grapes, potatoes and the like should be fine.
Mini Magnetic Pick Up Tool,Pocket Pickup Magnet,Telescoping Pickup
Magtoon Magnetic Products Co., Ltd. , http://www.dg-magnets.com