Don’t delete those spare models, stick em together instead!
I’ll get the ball rolling with my twisted composite, made entirely of parts from recent projects.
Here are a couple threads showing some of the pictures I harvested parts from. http://www.zbrushcentral.com/zbc/showthread.php?t=37508 http://www.zbrushcentral.com/zbc/showthread.php?t=37013
Now you! get your unused or unfinished models and build away!