How many times have we confused drinking? One that calls for a rum and Coke, the other that calls for whiskey and going to confuse you take yours and give it a sip of your drinking companions ...

If you are someone who will hate fixed-gear and any other beverage that is not yours always, you can customize your drink with "On the Rocks".

They are letters in the ice that makes the type of drink that contains the glass. At least you can identify the yours until melted ice.

The mold for 8 drinks cost EUR 5,5.