Sinthgunt, Sister to Mani and Sunna, is mentioned only once in the surviving lore, in the Merseburg Charm, an Old High German incantation dating from the 9^th or 10^th Century C.E. This charm specifically references Her as having the power to heal.

Symbols: hour glass, compass, images of the galaxy and cosmos, stars, images of the Milky Way, abacus (also appropriate for Mani), mathematical equations

Colors: purple, silver, midnight blue, black

Stones: lapis, labradorite, lepidolite, herkimer

Food and Drink: good vodka, sweets, peppermint, good single malt whiskey

Service Offerings: Sinthgunt is as much about time as Her father, so tithe part of your time regularly to devotional or charity work of some kind. Establish a regular routine of meditation. Make a donation to the National Space Society.  

Things not to do: Call upon Her lightly, show disrespect for Her kin, waste time that you have promised to any other endeavor,