tools
- pencil and paper
- index cards
- typewriter
- hypertext markup language
- clipboard
- satchel
- polyhedral dice
- mortar and pestle
- percolator
- plectrum
- cassette tape
- matchbook
- candle
- singing bowl
- corrective lens
- stropharia cubensis
- metaphor
- dress code
- pledge of allegiance
- mr. president