Make Paintbrushes from Pandanus Fruit

Step 3 Card the Bristles

Make a handle by screwing a big drywall screw into the base.
Rub the bristles on a wire brush to soften them up and dislodge any loose ones.
The best paintbrushes come from keys that get beaten by the surf and then wash up. Watch out for sand that comes out of the inner part of the key. A trip through a washing machine would probably be good for the brushes regardless of origin.