Many months ago Ivan asked to be a Chomper Plant for Halloween. Eric made it happen.
His big sister is a Sunflower. Both of these plants are zombie fighting vegetation from the app Plants Vs. Zombies.
Eric is dressed as Crazy Dave the genius behind using plants to fight the coming zombie hoards.

A stop to show off the costumes and be where it all started at the Downers Grove library which introduced Ivan to Plants vs. Zombies on its iPads. Ivan is playing some Plants vs. Zombies on the library’s iPad below.