Utility Mill

There's URL scheme, "data", that allows inclusion of small data items as "immediate" data, as if it had been included externally. See RFC 2397

This will let you put an image right inside of an image tag. Perhaps you can avoid having to host a small image somewhere? Perhaps you can find other uses for this?

Here is an example: (View source on this page to see how it works)

Instructions

Upload a small image, choose what type of image it is, and get either a new HTML file with the image inside of it, or just the image tag with the image encoded within it.

Notes

1. This doesn't seem to work for IE.
2. When entering a URL instead of uploading a file, the utility might sometimes time out. When this happens, either try again or choose a new picture.