This Poppy Field Mug from Dotcomgiftshop is contemporary design but one that's clearly been influenced by the 1950s.
1950s but also probably filtered by way of the famous Sanderson's Dandelion Clocks given the similarity in looks. Both designs play up on the fondness in the Fifties for skeletal natural plant forms combined with the use of bright colours to produce interesting looking patterns.
A bargain price too, at just £3.95 a mug.
Buy it online