Here are two more misspelled signs I observed while we were driving to the hardware store one evening. I noticed this side of the sign first on our way to the store.
A goat-herd herds goats, and a shep-herd herds sheep. That is an easy way to remember how to spell that one. Oh, yes, and the shepherds do indeed own the pie, so the apostrophe is missing (shock)! (That was a first.) It should read "shepherd's pie".
Then, coming back by this establishment going in the opposite direction, I saw this:
So, on the other side they have "deserts". My students can always tell me that there is ONE snake ("S") in the desert (sand, sun, heat), but two "S"s in the word DESSERT. And we remember that one by using the mnemonic device "strawberry shortcake". Get it? Strawberry shortcake has two "S"s , just like the word dessert --when it is correctly spelled anyway.