Spring
Brown crinkle cut paper
Small foam robin eggs (bought at a craft store)
Summer
Sand
Seashells
Optional: Blue marbles or gems
Fall
Dried pinto beans
Artificial leaves
Winter
Shaving cream
Blue and/or silver glitter
Side note: I’ve never made a sensory bag with shaving cream before, so not sure if this happens with all types, but after about a week or so, it evaporated; leaving only the glitter and a little water. This water then leaked out. Thank goodness I double bagged it!!!