Beads Beads Beads!

Montessori Year Chain
https://www.etsy.com/listing/176450350/montessori-year-chain-montessori?ref=related-7

Bead Stairs Stacker

https://www.etsy.com/listing/594934060/montessori-style-preschool-bead-stairs?ga_order=most_relevant&ga_search_type=all&ga_view_type=gallery&ga_search_query=&ref=sc_gallery-4-1&plkey=99a197ebe93847054cf90174fcf25fc933585061:594934060