See lists intended to guide instruction using UDL principles without the aid of high level technology (i.e. low tech). Low tech may include items that are readily accessible in most classrooms and require minimal cost to produce.
A template is a document type that creates a copy of itself when you open it. You can create a template saving a document as a .dotx file, .dot file, or a .dotm file (a .dotm file type allows you to enable macros in the file).
Crayon recycling is so easy that a major crayon manufacturer has created a small appliance that child can operate to make crayons from broken crayon bits and pieces.