Easy Way To Build a Small Greenhouse

This is a portable greenhouse, good to start seeds or small vegetables  (basil, parsley, salad, cilantro...). it's really fast and easy to built, and super economic and ecologic, I made mine all out of scraps and in little more than an hour.

Materials :
1 . Big plastic can (white is better)
2 . Transparent or semi transparent plastic sheet
3 . 4 screw with 4 nuts;
4 . 4 little piece of plywood about an inch by an inch;
5 . a piece of bike inner-tube;
6 . Duck tape

Tools :
1 . Jigsaw
2 . Power Drill