This activity works on fine motor skills and color mixing. I feel this would be able to work this into a theme that dealt with winter. I would ask the Toddlers to create different snowflakes or different things they may see during winter time
Create a Peek-a-Boo Sensory Board for your toddler to explore could make this a matching sensory activity. Can be used for toddler who have sensory issues and also a way for parents to help interact with the their children.