Bandit

Does anybody recall some small (about 2.5 x 2 inches) stickers or cards from around 1975/76 era that had corny jokes on them please? I have trawled the internet but can find no trace of them, and I have even asked dealers. Two jokes I recall were 'Where do greenfly go in the winter? To the lass factory to be made into bluebottles' and 'What type of horse frightens you at night? A nightmare.' That type of level of corny joke!! Cheers.