DIY Hand Painted Glasses:: Use acrylic paint and the back end of a paint brush for the dots - put in a cold oven - preheat to 350 - let sit for 30 min. Turn off oven and let cool with the glasses still in there let sit for 30 min then cool and voila
Scribbles from Emily: Tutorial: Dishwasher-Safe Sharpie Mugs
Alcohol Inked Tile Coasters - 25 Decorative DIY Coasters You'll Be Proud to Show off . SourceIf you look at the finished product, you would never guess that these are DIY coasters. All you need are some tiles, rubbing alcohol and alcohol ink!
Paint pen or oil based sharpie,allow them to dry for at least 24 hours. Once 24 hours has passed place them in a cold oven (this is important! you want them to heat up with the oven). Turn the oven to 400 degrees and set a timer for 40 minutes.