1. A bunch of cons wearing their prison blues would stick out like a sore thumb.

2. Helen Bostock, a horticulture advisor at the UK's Royal Horticultural Society, says that while a true-blue rose sounds fabulous[Sentencedict], it could stand out like a "sore thumb".

3. ‘He is a bit of a Curmudgeon who changes his mind all the time, but he is still likable.’ ‘I am an enemy of progress and a mean-spirited Curmudgeon.’ ‘As we near the term's end, there remains one embarrassing element in Canadian politics that sticks out like a sore thumb - a collection of grumpy Curmudgeons who care only about scoring