A Word of Warning

I teach Kindergarten. Today I started teaching rhyming words, emphasizing words that sound alike, but may not necessarily be "real" words.  For example, "red" can rhyme with "zed", but "zed" isn't an actual word.  So I gave the class words like "table" and "chair" and "rug" to make rhyming words as I glanced around the room, looking for objects to name. 

A word of warning:  don't give them the word "bucket".