What do you call coins of small denominations?

Small denomination coins often receive nicknames by those who use them, however the terms vary depending on the currency and location where they are used.

In the United Kingdom for example one and two pence coins are often referred to as "coppers" because of their color, the coins have also historically contained copper alloy. In recent years large amounts of low denomination coins have also been refered to as "shrapnel", especially among the younger generations. The UK government has considered removing one and two pence denominations from use, similar to a few other European countries, but has decided to keep them for the foreseeable future.