Find two old lightbulbs from around the house, if you have none you can simply just go and buy some at your local hardware store.
Hollow out both lightbulbs using your pliers and screwdriver. Be very careful as you are using sharp glass.
Go out and collect some soil/sand and small plants or tufts of grass etc..
Using a teaspoon simply fill it up with soil/sand a little less than half way.
You can fill it up with as much soil as you want but just remember the more soil, the less of the plant you'll be able to see.
Using the tweezers or your finger, place the plant inside the lightbulb and press down on the soil surrounding the base.
Make sure it is sitting as up-right as you can get it.
You are then finished! You can mix and match with colours and plants as much as you wish. you may also like to put tufts of grass on top to make it look nicer.
you may also like to hang them up on the ceiling or beside the window.