Mosaic Chairs: In the Works

I have spent almost all afternoon arranging tiles into a mosaic pattern on my garden chairs. I have been putting off this fun little project since December when I acquired these fine chairs at our church's silent auction. The chairs have been scuffed, primed, painted and now they are ready for their seats. But after all the work I put into arranging a pattern onto the seats, I find that I have the wrong adhesive, or rather, lack of adhesive for the job. I thought that I could use the grout that I bought back in February for both the adhesion and filling in spaces for the tiles. Wrong. I am very disappointed and feel like I wasted all this time. Now I have three hours before I have to leave for a daycare meeting and no way to go get what I need before that time. And my next free day isn't until next Tuesday. Yuck. Hopefully, no one (ahem-Josh) will jostle my chairs until the tile can be properly glued in place. At least I got to work on my sun burn, I mean tan. :)