Whoever invented the multiple water balloon filler is a genius. I think they're awesome. The only problem is that once they're used, they're done.
Luckily you can buy refills (from AliExpress, for instance). The refills come with a tiny rubber O-ring and water balloons. They do NOT, however, come with a tool to help you refill them quickly.
I decided to make one to help the summer fun continue!
Step 1: Materials Needed
- A used water balloon filler
- A thin drinking straw (larger ones won't work as well)
- A small amount of Polymorph - a thermoplastic that can be formed using hot water
- Water balloons
- Small O-rings
Note 1: The thinner drinking straws work best because the O-rings can break if stretched too far. That's the reason I simply didn't use a BIC pen tube, for instance.
Note 2: You can buy Polymorph online or at your crafts store. It's REALLY handy and I've found lots of uses for it.
Step 2: Cut, Melt, and Form
- Cut the straw to a little longer than the water balloon when placed on the filler.
- Boil some water and heat the plastic. That small glob made about 6 tools.
- When the plastic is ready (it becomes transparent, roll them into thin points on both ends. These rolls should be a little thicker than the straw, but not by too much.
Note 1: I would make a few of these. You can have someone roll on the O-rings on one while you use another to refill the filler
Step 3: Cut to Length, and Then Superglue
Once you have let them cool completely, insert it into the straw. Cut off any excess so that the straw and plastic overlap about 1 cm (or 1/2").
Dab a small drop of superglue on the side of the plastic tip and insert it back into the straw. Twist it around to distribute the glue and leave to dry.
Step 4: How to Use
Watch the video again or follow these steps:
- Place a few of the O-rings onto the straw. Space them apart so that they do not touch - otherwise, rolling them down will be difficult.
- Place your balloon onto the end of one of the filling tubes.
- Place the tool will the O-rings on top of it.
- Pinch and hold the filling tube, balloon, and tool. This helps you roll the ring down easier.
- Slide off the tool and move on to the next balloon.
You can easily refill a few of these in minutes. As mentioned, having another couple of people to help makes it go a lot faster. One to put the O-rings on the tool, one to slip the balloons onto the filler tubes, and one person to place the O-rings to lock it.
Have a great time this summer playing with water balloons! They are one of the best childhood memories (and adulthood if you have fun friends).