Here are a few ideas on how to enchant items, in no particular order:
Surround the item with crystals of corresponding intent
Surround the item with herbs of corresponding intent
Place the item in a jar filled with herbs that represent your intent
Place the item in front of a candle and meditate on your intent
Anoint the item with an oil, charged water, or crystal elixir of corresponding intent
Hold the item in your hand(s) and visualize it filling with the appropriate energy
Hold the item in your hand(s) and speak your intent aloud
Craft a sigil or symbol to keep near the item in an envelope or sachet
Sew, stitch, or carve a sigil into the item
Write your intention on paper and keep in an envelope with the item
Pair the item with a corresponding runestone or tarot / oracle card in an envelope
Take the item and put it in a box with other items that represent your intent such as crystals, herbs, talismans, amulets, etc.
Bury the item in soil with herbs and/or crystals that match your intent (please don’t put salt on your lawn though, unless you want dead grass)
Pass the item through incense smoke that matches your intent