Here's a set of characters that can be copied and pasted into any other doc or slides file.
Each character can be resized, cropped and even recolored to a degree as shown below:
The silhouette characters can, also, be downloaded and uploaded to Wordart.com to create tons of fun "word cloud" type graphics. To download, just right click on the image you want to download, and choose "Save to Keep" (install this extension here.). Once saved to Keep, you can right click on the image that will appear to the right of the slide and simply choose, "save image as".
Within Wordart.com, just go to "Shapes" and then "add image" and upload your image choice. Add words and edit as you wish. Here are a couple of samples that I created: