There are so many free or very cheap that are fun and coudl easily replace atrp to the flower gardens.If we jsut come down to the level of our kids and do the things they like to do with them intently that is valuable too. Next mission with my five year old. Try to find thermals and see if we can get an airplane to take off up into one. Four year old…plant tomatoes. Baby play horsey. When they are older it could be a game of basketball or body surfing. The list is infinite.