Former Iowa State QB Seneca Wallace, the current 2nd string QB for the Seattle Seahawks, got into the Super Bowl for one play last night. He went in at WR but was only a decoy on the drive following the (former IU QB turned WR) Randle El throw for a touchdown.
The reason that they decoy drew any attention was the fact that he had a thirty yard reception in the NFC title game against Carolina (his first NFL play at WR)
(Note that the dude that recorded it is yelling in the background so you may want to turn down your speakers)
Also, if you haven't seen it in awhile here was Seneca's "The Run" versus Texas Tech that finished as one of the top plays of the year in 2002.