Mostly Euro coins as the Euro is the local currency, however any coin from any country can be thrown in.
What the forum FAQ says about floating coins: Q: Coin Fountain: I see flying coins! What does that mean? A: The coins are a random chance for players to win 100 coins while plowing, planting or harvesting. It happens completely randomly with any kind of crop. If you see the coin above your head, check your coin balance. You should have an additional 100 coins in there. You do not need to click on the coin or grab it, the addition of the coins will be added automatically.
A chocolate fountain is an example of a screw - an Archimedes Screw, to be exact.
gravity
Fountain (kind of like a waterfall)
You can find one at sugarcreekfountains.com. A really good site is fountainmountain.com. They sell every kind of fountain you can imagine with different prices.
fungi is found on coins. it can be very harmful
A pebble thrown in water creates concentric, expanding circular waves.
FURNITURE!!
Poisons of any kind, and medications of any kind.
A really big one!
To paint a resin fountain, you need a paint that can adhere to plastic. Since it is for a fountain, you will also need paint that is waterproof. Many manufacturers make such paint, you just need to read the label to find what you want.
One that should be thrown into an open fire.