They're up there with the most popular celebration cakes so it's no surprise that retailers have been transforming their caterpillars into corgis to mark the Queen's Platinum Jubilee.
Aldi has stayed out of this one - poor Cuthbert's probably avoiding the limelight after his court case. This time it's Morrisons and M&S going head-to-head with their cake creations.
While Morrisons has launched Clarence the Corgi cake to honour the occasion, M&S, home of the original Colin the Caterpillar, has gone double whammy with two cakes in one. One half of the M&S creation is a corgi and the other is its Connie the Caterpillar transformed into the Queen herself.