Sparks

Sparks is a character in Toy Story 3. He is voiced by Jan Rabson.

Toy Story 3
Sparks is a robot toy at Sunnyside Daycare. He has shown to be both blunt and sarcastic. Sparks' retro design has flashing red LED eyes and a blaster cavity in his chest that spits out real sparks when he’s rolling around on his wheels (but is completely safe for children). He sports telescoping arms with working pincers and he can also elevate his body to make himself taller. He was one of Lotso's henchmen, but reformed in the end when he (along with his cohorts) found out about Lotso's past and how he really is.

Toy Description
From Official Website:

"Sparks will fly - literally - during electrifying playtimes with your new robot friend Sparks! This retro-inspired toy has flashing red LED eyes and a blaster cavity that actually spits out real sparks when he's rolled along on his sturdy rubber wheels. Sparks also sports telescoping arms with working pincers, and an elevator action that raises his entire body to new heights. Sparking action completely child-safe. Requires two AA batteries (not included)."

Trivia

 * Sparks appears to be based on the sparking-action Transformers toys from the 1980s. These toys were considered dangerous, and are no longer able to be produced. None of the current Sparks toys made include the sparking feature; the only Sparks toy currently manufactured (the Thinkway Toy version, seen in the picture above) has a light in its chest replicating the sparking feature.
 * Sparks is similar to Robot, particularly his robotic arms and treads.