2. Cut your tiles I've used crazy paving, that is tiles cut into irregular shapes, for much of the design. The shapes include triangles, squares and rectangles. The dark line is created by nipping a 2 cm tile into 3 rectangles and then halving them.
3. Laying the tiles Draw the outline of your design onto the chair and begin laying the tiles. I've used a cement based adhesive to glue the tiles, a palette knife comes in handy for spreading the adhesive. When you've finished your work make sure that you leave no excess adhesive on the chair, otherwise you will be scrapping it off or end up with an uneven surface.
Once all your tiles are laid allow 24 hours of the adhesive to cure completely before grouting.
4. Grouting
I've used a white grout with an additive. Once cured the grout was sealed to assist with protecting it against stains.
For more information go to the 'Beginners Guide to Grouting'.