A 12-year-old Rhode Island boy was suspended after his parents say he brought gun-shaped key chain to school.

The key chain, about the size of a quarter, fell out of Joseph Lyssikatos' backpack at Alan Shawn Feinstein Middle School in Coventry on Thursday, Providence TV station WJAR reported.

Another boy then picked it up and began showing it off.

"This boy was the one waving it or showing it to other kids. Not Joseph. Joseph wasn't doing that so why weren't both of them reprimanded," Joseph's mother, Bonnie Bonanno, told WJAR.

Along with being suspended for three days, Joseph was barred from a class field trip to Salem, Mass.

The school district declined to discuss specifics of the case.