This drip catcher is actually more of a 'drip preventor'. It works because the plastic tubing creates a sharper angle than the actual end of the spout. The sharp edge prevents the water from rounding the end of the spout and running down it.

(I am sure there are some water surface tension scientists out there able to explain the physics of it, but even if I don't understand it, I know it works.)
 

Supplies:

Tubing from hardware store - 5/8" thin wall, food safe

sharp knife or hefty scissors

jig / miter box (optional)

Cut tubing into manageable lengths (8") Tubing comes coiled at my hardware store. I straighten it with very hot water.

Freeze tubing rods. When very cold the tubing holds it's shape; then you can get a very neat and even cut.

Place tube in jig and cut the angle with very sharp knife.

Then cut straight across at 1"-2" from end.

If you prefer a quick method, warm tubing cut with a hefty pair of scissors works too. The cuts aren't so neat, but it is very quick to do.

Mount flower on drip catcher with quilt basting tool (available at Joann's or other fabric shops).

Warm drip catcher in hot water until it is very pliable, then slide over the end of the spout.

When it cools it will be quite stuck to the spout. It can be removed by getting it hot again and pulling it off.