How to fold an origami toothpaste

Fold one end of a red strip behind so it pokes out as a white cap, crimp the flat end, then slim the tube and fold its shoulders.

You need: A 6.5 x 27 cm strip of paper (cut from the long side of A4). Easy, 5 steps, about 6 minutes.

Steps

Cap: slant the sides. Coloured side up, lying across. On the left 15 cm, fold the long edges to the front on a slant, from 12 cm in to 1 cm from the middle at the end.
Cap behind. Fold the slanted part behind, folding where the slants start. Its white tip pokes out past the right end: that is the cap.
Crimp the end. Fold the left end over to the front, about 1.2 cm. This is the flat, crimped end of the tube.
Slim the tube. Fold the top and bottom edges of the tube behind on a slant, from the crimp to 0.5 cm in near the right end. Keep the cap out of it.
Shoulders. Fold the two right corners of the tube behind on a slant, about 2 cm, so it narrows into the cap.

Draw ridges on the crimp and the cap, and a wavy white stripe of paste along the tube.