Image from www.kalev.eu
I love chocolate, or better yet- chocolate meltys. And although I've eaten my fair share, that's not really the reason that I love them. They are awesome for adding detail without much effort. There's just something about them that can make the ordinary something to remember.
Here's what I do.
1. Buy chocolate meltys in bulk section at Winco. They offer white, milk and dark meltys.
2. Place in a heavy glass bowl and microwave in 30 second intervals, stirring between, until they are thoroughly melted. A lot of times I'll just let them sit after a minute or two and the heat from the bowl will finish off the job. You have to be careful not to scorch them.
3. Transfer melted meltys into a ziploc back, cut a tiny triangle from one corner and you've got yourself a chocolate marker.
4. Pipe designs onto wax paper.
**For more detailed designs or ones that I want to be consistent, I'll print them off on a piece of paper, slide it under the wax paper and simply trace it. It's so simple, but the results impress.
Real life application: The birthday cake I wanted to make for Brother suggested cutting dinosaur bones out of sugar cookie dough and baking them. It all sounded like a little too much work for me. So I found a good dinosaur skeleton, slid it under the wax paper and traced. It turned out great, and in less than 10 minutes. Compare:


You can easily "drizzle" strawberries, shortbread, store bought cookies (thin mints, etc.) for extra pizzaz. Just make sure to cut a very tiny bit off the corner and work back and forth, extending past the object so there are only straight lines.
To elevate desserts, premake some simple designs with the meltys to place on the top as a garnish. (grids, snowflakes, hearts, swirls, flowers)
The fun doesn't have to stop there. You can also color the meltys with food coloring. I recommend the pastes, or oil based dyes, for best results. Otherwise the color can look mottled and splotchy.