Atomizer

Atomizer is used to spray liquids, so you can use it to dye, paint or varnish something.

Step 1: Setup

You need two drinking straws, one of them have to be wider than the other.

Use your Sugru to connect them by right-angle.

Step 2: Voilà

Here it is!

Dip the thinner straw into a cup of liquid and start blowing air into the other straw.