*As defined by Google
Sympathetic magic encompasses a lot of things: poppets, candle magic, the Great Rite can all be examples of sympathetic magic. To use this type of magic you will need tools other than your intentions (which of course, are just as powerful). Whenever you are creating a spell, look at what you are trying to achieve. Don't immediately go to websites trying to copy spells because these spells don't have anything personal to you in them. Think about it first.
For example: Let's say you were creating a spell to help fill your life with financial abundance. What does this abundance entail? A promotion? A raise? Both? If so, what do you associate with this? What colors represent abundance to you? Which element? What God or Goddess? What herbs? What crystals? What actions?
These are just a few of the questions you should answer for yourself and then create a spell around it. Let's say you want to have a raise. You associate with money with the color green and therefore with the Earth element. You associate this with the Goddess and her ever flowing womb so you wish to incorporate your matron Goddess. Pretty soon you're encircling yourself with salt and meditating on a green candle while envisioning yourself with money and love your Goddess.
Don't be afraid to make your own spells. No matter how simple they seem, or how over the top, do what works for you. Put your heart in it and things will happen for you!