The entire high contrast trend is a great way to waste money needlessly. If I were asked what to get a 2- to 3-month old, I would say (1) a tummy time pad, since the practice of putting babies to sleep on their backs makes them not like being on their stomachs and inhibits rolling over, (2) Tiny Love battery-operated remote control mobile if you have a windup mobile, since the windup mobiles are shit, (3) an activity mat if you don't already have one, (4) an exersaucer or bouncy chair, (5) cloth books that can be washed that emphasize textures, and (6) stuff for teething - it will start soon enough and you want things the baby can chew on.