At 14 months old, normally he/she can walk already. You can bring him/her to outdoor to have a brisk walk, kick ball, or swimming pool to play water.
At home, I will do cut and paste, finger painting, playdoh, water pouring activity, beads transfer activity and etc., where I focus more on training his/her motor skills.
You can refer to this blog for more pictures and ideas of play at 14 months http://becomingastayathomemum.com/playtime-ideas-at-14-months/