The concrete poem builder from the UK has many different shapes for kids to choose from or they can draw their own shape with the crayons. After the shape is added to the board, add the words to your poem onto the textbox so you can place them in the shape. When you are finished, print the poem.
The shape poem builder comes from one of my favorite sites, ReadWriteThink.org. While this site does not allow children to draw their own shapes, it does give them the option of adding text in an easier manner. The shape poem builder also has the option to print the poem when finished.