I would like credit for the idea. Also, I would like to test.
Item - Water balloon bag - holds up to 16 full water balloons
Item - Empty water balloons - Fill these up
Brick - Water balloon pump - Use to fill up balloons
To make a water balloon, you have to get an empty water balloon and a water balloon bag. Then, you have to get to a pump. Click the pump. A little UI pops up, where you have to do a few minigames to fill up the balloon.
First, there would be a bar, with a slider moving around it. The bar would have green in the middle and red on the ends. You must click while the bar is in the green. Doing so moves you on, while failing to do so would force you to wait 2 seconds before trying again.
The second minigame would be to press a few arrow keys in a specific order, along with a textual image. The arrow key order would be this : Up, Up, Right, Right, Down, Down, Left, Up. The textual image would be a 3x3 grid of underscores, with the lower left being replaced with an asterisk. Pressing up would replace the asterisk with a dollar sign, and replace the underscore above the asterisk with an asterisk. This would follow through the course of the motion. How it would look:
_ _ _
_ _ _ Up
* _ _
_ _ _
* _ _ Up
$ _ _
* _ _
$ _ _ Right
$ _ _
$ * _
$ _ _ Right
$ _ _
$ $ *
$ _ _ Down
$ _ _
$ $ $
$ _ * Down
$ _ _
$ $ $
$ _ $ Left
$ _ *
$ $ $
$ _ $ Up
$ * $
That is when the water balloon finishes. Said water balloon will be stored within your water balloon bag. If you have no bag, then the water balloon is wasted.