To make a drawing, you can use microsoft "paint", then save it as a ".gif" file.
You can also import drawings into "paint" from microsoft "word" (i.e., draw it in "word" first)
Here is an example of each of these put into a table:

A "Paint" drawing:	A "Paint" drawing made in "word":

NOTE: you can always just make a drawing by
whatever method, then print it, then scan it.