Clocks are a popular object to minimise, but the Front & Back clock still caught my eye - it combines uses the needed AA batteries as clock hands.
Of course, this is just a fun little thing, but it shows an important tactic in the minimising of objects: through the merge of multiple elements into one.
The Front & Back clock is designed by Korean designers Giha Woo and Shin Go Eun, who work under the name of The Wrong Objects.