![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-2.jpg)
Ruhrsteine by Formfjord
Berlin designers Formfjord have made concrete pebbles for stone-skipping across water.
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-1.jpg)
Called Ruhrsteine, the products are cast from real pebbles found by the river Ruhr and imprinted with a symbol prompting users to throw them away.
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-3.jpg)
Here are some more details from the designers:
FORMFJORD'S RUHRSTEINE – A THROW-AWAY PRODUCT
Inspired by the culture of "skipping stones“ Formfjord copied selected flat pebbles – perfectly formed by Nature and reproduced them in special concrete.
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-4.jpg)
In the course of European Capital of Culture Ruhr 2010, Formfjord introduces these "Ruhrsteine“, collected at river Ruhr as a limited Edition.
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-5.jpg)
"Ruhrsteine“ have only one practical benefit – making people happy when throwing them away.
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-6.jpg)
The cast in "throw-away-symbol“ unmistakably prompts you to use the product in this spirit: Unpack and throw-away.
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-7.jpg)
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-8.jpg)
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-10.jpg)
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-9.jpg)
![](https://static.dezeen.com/uploads/2010/05/dzn_Ruhrsteine-by-Formfjord-11.jpg)
See also:
.
![]() |
![]() |
![]() |
Waterpebble by Priestmangoode | Concrete Buckle by Sruli Recht |
More design stories |