Montessori color tablets are fairly easy to DIY. Here is a tutorial of my DIY Montessori color tablets using inexpensive Jenga blocks from the dollar store
Color Inquiry: An Invitation to Explore Graduating Shades of Blue to Create Ombré Art (from Antonella Fabbro on Instagram: https://www.instagram.com/p/1VWvFzm6Va/?taken-by=antfabb)
HUGE Kids Felt Map of World Continents. Montessori Colors, Includes Labels + hanging strips. 17 Pieces. 3x5 ft.
Love this art shelf and the color coding of everything. This shows children the different shades of colors.
Threading activity with pipe cleaners and upside-down colander
Get your nursery pupils learning colours with this idea. Put colourful items in a basket and ask them to put them on the matching plate.
Color teaching pinwheel- would be good for fine motor and color recognition.
Autumn Tree Threading Activity for developing fine motor skills :: Wings and Roots
Colour sorting / Colour Wheel (homemade!) - so pretty, and I love this kind of activity for my littles.
20 sensory baby play ideas for 6 month olds | BabyCentre Blog