A challenge!

[laurasue.livejournal.com]

Here's something that's been plaguing me that I could not find in the memories.

Over the years I have tested various ideas that all failed, in attempts of making the perfect crafty beverage coaster. Thus far I've only really been able to create ones that will work for cold beverages but not hot, or hot beverages but not cold. The biggest problems I've come across are icy, sweating drinks washing away embelishments or hot coffee mugs erasing designs.

So I thought this might be the place to bring it up. Ideas?