Let me introduce the humble jar. It might be a preserving jar, a plastic peanut butter jar or a large fancy decorative jar. The uses for it are limited only by your imagination. Below I've provided a few ideas to stir up that imagination.
As with any spell, it's important to be clear and specific about what you want. Vague spells get vague (or no) results. Charging, empowering, energising (however you look at it or whatever you call it) is also absolutely essential. Otherwise, it's no different to the jar on the windowsill that all the little stuff (buttons, pins, paperclips) that might be useful one day gets stored in.
Any of these could be stand alone work or used in conjunction with any other type of spell.
Honey and Sugar Jars (or bowls or saucers) for sweetening people are common in Hoodoo, Rootwork and American Folk Magic.
Write the name of the person needing sweetening and place it in the jar. Alternatively, you can combine petition magic with this and write a letter or explanation of the situation that needs sweetening. Fill the jar with sugar, honey, molasses, syrups, jams - anything that is sweet can work.
Some dress a candle and burn that on top or beside the jar, some do this repeatedly until they get their results.
This can be used for a job spell to make the potential employer favour you, to attract someone to you, to resolve conflict in your favour, in court cases, to soothe someone who is upset at you or to stop or prevent abuse of any sort against you. Any situation where someone needs a little sweetening up.
Protection Jar (also known as a Witches Bottle or Bellarmine Jar)
This is a well-known and common jar spell used for personal (and family) protection.
Fill a jar with nails, broken glass, sharp and nasty stuff. Fill it with your own urine, add some blood or hair or other bodily fluids. Seal it and tuck it away hidden somewhere on your property. Under the floor, inside a wall or buried in the garden are popular places.
The personal links act as a decoy for you. Anything sent your way goes to the jar instead of you, then the sharp nasties trap it there and tear it apart.
Any money spell can work in a jar. Fill it with money drawing components, add a magnet and some coins. Be specific about how you want money to come to you. You could add your spare change to this when you think of it and have a magnifying component. You could write yourself fake cheques from the "Bank of Life". You could add a money powder or bank statements or something to represent goals that you need money for.
It might help to decorate the jar and leave it somewhere you can see it often.
A jar can work in place of both poppet and thing to contain or bind the poppet. Put the person inside the jar (photo, personal links, names or a poppet), you could bind the jar, or bind the links inside the jar.
This can also be used to calm someone down when they're a bit over the top in any fashion. I know a lady who "bottles" her husband when his exuberance gets to be too much.
Curse JarA curse jar can be a specific one curse only item or for repeated usage.
The jar could be filled with sharp nasties as in the Protection Jar, poisonous or thorny plant matter, animal faeces, toxic or unpleasant insects or their houses (ant hills, wasp nests, spider webs) or any other unpleasant items you can think of. Add the person's name, photo, a personal link or sample of their handwriting. You could also add water collected during a thunderstorm or black water from a septic tank.
I'm sure by now, you can see a pattern. Put your spell components or sympathetic components into the jar, add your target or purpose, charge it up and seal. This list is only a few ideas that I see or use most commonly, use your imagination for any other uses.