Instructables
Picture of Mini greenhouse with plastic egg carton
IMG_0689.JPG
IMG_0690.JPG
IMG_0691.JPG
IMG_0692.JPG
IMG_0694.JPG
IMG_0697.JPG
How to make stalk-able mini greenhouses out of plastic egg cartons. Perfect for window sills

The images explains it pretty well, but in case someone wants the instructions, here they are:

1- eat all eggs
2- separate the end piece (with egg shapes)
3- make small holes at the bottom of the egg-shaped piece still attached to the lid
4- put the piece with the lid (that has the holes) on top of the piece with no holes to gather excess water
5- fill each egg-shape with earth and start planting!