What's the best material for a beginner DIY custom drink coaster tutorial?

For a first DIY coaster project, ceramic tiles are the easiest and most forgiving material to work with.

• Cheap, often under a dollar each, so mistakes cost almost nothing.
• Flat and smooth, which is ideal for the Mod Podge image-transfer method.
• No special tools required beyond a laser printer and a clear sealant spray.

Most beginners finish their first set in under two hours. Once you are comfortable, wood and cork open up more finish options.