Do you know a dad who is super and cool?  Do they drink beverages of any kind?  Maybe this would be a nice gift for them to set their beverages on so they can be reminded of their awesomeness every single day.
 
Coasters measure 3.75" square and 1/4" thick.  The super glossy surface is waterproof and heatproof and looks great, too.  Good for hot or cold beverages to protect your fancy surfaces from condensation, or just to claim or pretty up your place setting.  You could even use it under a hot dish at your dinner table. Imagine that!
 
Pair one with a mug for a super nice gift set!