I honor the Kemetic Aset as opposed to Isis, the trans-cultural Goddess of Ten Thousand Names. So much of this reflects the Kemetic Aset and not necessarily the classical Isis.
Aset’s shrine should be kept in private area (or as private area as you can make it). Place the shrine on top of a table or bookshelf or dresser or other flat surface.
blue or white altar cloth
image or statue of Aset
blue or white candle/plain beeswax candle
incense burner/oil diffuser
myrrh or frankincense incense or essential oil
blue or white offering bowl for water libations
a pitcher for water libations
Myrrh, Kyphi and frankincense are traditional Kemetic scents. Aset seems to like Myrrh from me, but YMMV. Floral scents seem to go over well with Her.
You can place images or figurines of Her theophanies (sacred animals) on Her shrine.
Nile tilapia fish (as Hatmehyt)
Sweet Wine; Riesling Wine; Mead/Honey Wine;
Fruits and Vegetables
Pastries; cookies and cakes
chicken or beef (occasionally)
flowers, especially roses
fish; any seafood
beef (Herodotus mentions this. I’d ask Her before offering)
Disposal of Offerings
With wine or water, you can leave it to evaporate on the Shrine and pour it out as a libation when done.