hair – toe-fa
Written as tóufa or toufa
To remember that hair is pronounced toe-fa (toufa) in Mandarin Chinese, use the following mnemonic:
The hair on my toe stretches far (toe-fa) down the road.

Tones
Toe (toe) is a 2nd tone with / as an accent.
Associate toe, a 2nd tone, with a balloon filled with helium or anything that goes up. See Tones and Mnemonics.

The balloon carried me away by the toe.
Remember
toe = 2nd tone = /