Making Clipart

Hey guys sorry Tech Wiz Wednesday is a bit late this week. I hope everyone is enjoying their week. On Tuesday I asked everyone to tell me about there favorite product on Tpt. Now I want to ask about making clipart. Many of you guys make clipart for your products and I want to learn how to do this. I have played around with some basic things. I want to do some more detailed clipart. I was wondering if anyone wanted to share their knowledge about making clipart? Does anyone have a video or directions that they found helpful?
Most the time we use our Tech Wiz Wednesday to inform everyone about something with technology. This week I wanted everyone else to help with the information. :)
Thanks in advance for your help!
~Manda