Unless you have more of the tiles or can find an other tile that could be used for a border or maybe "artistic" acsent pieces then caulk is probably the best option.

In addition to the common white, almond/bisuit colors in the tile section are are any number of colored caulked designed to match the color of caulk.

If you are artistic you could use bondo to fill the holes and then paint them the patches to blend in with the tile.

The main way to get rid of silicon caulk is scraping.

But there is also caulk removers. The home improvement stores often have them.

While not listed as a caulk remover I have used goof off. It softens and cause the silicone caulk to swell up. But you still need to scrap, but that makes it easier.

you can fill in teh holes with grout or silicon caulk to match the tile.

to scrape the silicone get some one sided razor blades or flooring razor scrapers, both available at your local big box home improvement retailerm and start scraping til its gone.

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There are two ways to do any job. The right way and the wrong way. Do it right everytime.

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