game # 587778 at stansco.com my black pawn stayed on e2 for 17 moves 
I have no doubt that 2 children who just learned the game has easily beaten that record. Just watch a scholastic tournament, especially the kindergarten to 4th grade crowd. 
I have subsequently been informed the specific record I claimed is at least 43 moves
However that black player lost and I won
A King/pawns/opposite color bishops ending could legitimately have something like that.