My colleague Chris compared Google Image search to Bing Bing Images vs. Google Images - Which Has Better Results? Bing Images vs. Google Images - Which Has Better Results? Bing’s image search once challenged Google, offering more features and a better design. With infinite scrolling and the ability to search for similar images, Bing was legitimately better than Google at image search just a... Read More , and found Google’s results to be better. If you feel the same way, don’t worry: you can use it to find rights-cleared images. While searching for an image, click Search Tools then Usage Rights.
I'm seriously angry that Clipart is gone. Why? Because many of those cheesy images were available as Vector Graphics. So, I could quickly insert a crappy clipart into my powerpoints, ungroup the elements of it and delete all but what I wanted. I used it and it worked awesome for me multiple times. I wrote clipart off for years and only started doing this in the past 2 years...I wish I had known earlier.
If you mean your own artwork, then you'd take a picture of it, upload it to your computer (make sure you know where you're saving it), then select Insert > Picture in Word, browse in the location where you saved the photo, click the picture, and insert. If you mean an image from the internet or something, you can just save it to your computer and basically follow the rest of the steps above.