Seeking any hatchimal experts.... If I get an 18 pack of colleggtibles would it be suitable to open the outer packing and put individually (as uncracked eggs) in party bags? I want to do 2 nice(!) things plus cake, found some good usbourne sticker books so want to add a toy without spending too much. DD and friends love hatchimals and these are within budget, but not sure if they would disintegrate without their packaging? (Yes I know I could just do a bouncy ball plus balloon and pencil but I am doing a cheap party and want to do nice gifts to make up for my guilt for the cheap party!!)