Merry meet, @WitchOfTheForest 
Welcome to the forum- it sounds like you are quite the talented crafter! I personally would say absolutely- adding spells to items is a huge enhancement. Although actually, many Art Witches and other magickal crafters will say that making something with love and care by hand is an act of magick itself! 
If you’d like to cast a spell, the type of spell to cast will largely depend on the function of the item and your intention. Here are few types of magick you might consider:
Consecrating Tools
Note that consecration is usually done by the one who will be using the tool in their spellwork- these spells are great for personal use
Charging
Charging is a great and easy way to imbue a magickal tool with energy for spellwork. Crystals and water are commonly mentioned, but all tools can be charged
- Sunlight for Charging Magickal Tools
- Charging Jewelry by the Moonlight
- Charging Your Space With Magickal Energy
Other
- Activate, Charge, and/or Consecrate Talismans
- How to Bless an Amulet for Protection
- How to Make a Talisman for Protection
Do you maybe have a witchy shop for the artifacts you craft? If so, would you like to add it to the Coven Member Shops List? It’s a collection of witchy shops owned by coven members so that the coven can support one another
Happy crafting and blessed be! 