This activity can be used with long vowels as well as short one. Don't make the cubes...use the milk cartons from school lunches.
My kids have loved this activity and even "invented" their own ways to make it better. If you buy this, email me for even more suggestions on what to do with it. I can also email you tons of more pictures to keep you from having to look for them for the students to use to find their own short or long vowel words.