The Frog Base

The frog base is a more complex base folded from the square base. It is mostly used to make frogs (hence the name), and to make it you need to have mastered the petal and squash fold. If you plan on making a frog from it, green is probably the best color.

Step 1: Fold a square base and have the open end at the bottom

Step 2: Take the left hand flap and squash fold it down...

 ...like this:

Step 3: Do the same with the other three flaps so they all look like this:

(tip: you will have to temporarily fold some flaps to the side to do this to all three flaps)

Step 4: Valley fold the bottom left edge to the center (make sure to only fold the top layer)

Step 5: Valley fold the top layer at the bottom right edge to the center

Step 6: Unfold the folds you made in steps 4 and 5

Step 7: Take the green flap and petal fold it up (its best to grip where my thumb is in the pic)

 It will look like this:

Step 8: Repeat steps 4-7 on the remaining three flaps (just like you did in step 3 with the squash fold)

Your frog base is now complete and you are prepared to make some frogs! Ribbit!