Make a play ice cream shop that your kids will love! Includes a free printable "order form" to play with! Could buy ice cream stuff and use with playdough for playdough ice cream fun
Indoor miniature playscape - Jungle, also can do village.
The Imagination Tree: Small World Play: Construction Site Sensory Bin
Rainforest Small World Play Set - DIY Toys from Crayon Box Chronicles at B-Inspired Mama