Beachy's Postcard

So who's Beachy? She is a member of Artsnthemail. She sent out a post a while ago asking if someone would be interested in completing a set of alphabet postcards for her. The swap is listed like this "something beginning with the letter C". Beachy needs C, E, K and Q. I asked her to send me a list of what she already had for the letter C so that I didn't duplicate ones she had already received. So, here is C is for Cactus!