Great classroom decor and classroom organization item!
These are made specifically to fit inside the square and rectangular adhesive labels that are available at Target in the dollar section.
Of course, they can be used otherwise as a label in any other way you'd like.
This resource includes a PDF file with 20 square and 20 rectangular labels that are rainbow themed and labled with common classroom items such as pencils, paper clips, scissors, etc.
It also includes a 30 page Powerpoint that has many different color schemes with a rainbow theme (chevron, diagonal stripes, polka dots) for both the square and rectangular labels. All you simply need to do is add a text box on the labels with whatever you wish! Very, very user friendly!
You may also be interested in a similar resource of mine
Nautical Themed Labels
Beach Themed Editable Labels