I found a fun site for kids to make their own word clouds. I made this one to show my kids as an example. You could have great fun with this typing in vocabulary having to do with any unit. Wouldn't the kids love to type up their spelling list this way?
This is one I made to try it out. You have the option to save or print it. If doing this in a computer lab, be sure to remind the kids to add their name as one of the words!
I recommend playing around with it a little first. You can change the fonts, the background colors and the layout.
The site is ABCya! Have fun with your word cloud!