Option 1: Deluxe Refurbishing
- Get some stiff pipe-cleaners from the craft store. You may need to braid them together to end up with one that's thick and strong enough to use.
- Boil a few litres of water.
- Lower the straws into the boiling water. They'll soften and uncoil.
- Using tongs and wearing water-proof and heat-resistant gloves, pull the straw out of the water.
- Feed the straight straw over the pipe-cleaner.
- While the straw is still hot and soft, coil it around the outside of the cup. This is your first pass. When the straw sets, take it off the cup.
- Put the straw back in the boiling water. The pipe-cleaner should hold it in the correct (roughly correct) shape.
- Set the cup on a low pan, like a bake-tray. This is to catch spills. DO NOT SKIP THIS STEP!
- Push the softened, coiled straw into the cup, twisting the straw to tighten the coil. You may use tongs or a butter-knife to push the straw down in the cup.
- If the straw gets stuck, and starts to set, fill the cup with boiling water. BE VERY CAREFUL. Pour the water back into the kettle or pot, then keep working the straw into the correct shape.
When all of this is done, you can pull the pipe-cleaners out of the straw. Voila! And if you're feeling daring, you can use this method to create a completely different shape to the straw. If you do, keep the pipe-cleaners handy. You'll need them to clean the interior of the straw (it gets gross otherwise).Option 2: Quick and Dirty Refurb
Boil the water, heat the straw, and put the cup on the bake-tray.Fill the cup with boiling water.Push the floppy straw into the cup, twisting it into a coil as you do so. You may use a dull knife to arrange the coil of the straw.
The coil will be pushed to the bottom of the cup, and won't have the nicely separated spiral of the original - but it will work.