First, I have some sequencing cards that could be arranged on a pocket chart, in a tray, or on a table space. THESE 3 PRINTABLES OPEN HERE!
Next, especially for the preschool teachers, there is a free printable for color matching cards. I used glass beads which may not be appropriate depending on the age of the child, so dabbers would work, also. Of course, you are free to use it anyway it fits your students, children, or teaching style.