Yep, that's right, TARDIS. Why? Because that's my latest pattern! I've finally got the charts out from my TARDIS kleenex box cover, as a free pattern- download now via Ravelry!
The charts can be used for color knitting and crochet, for needlepoint, cross stitch- even for weaving. If you want my kleenex box cover, use standard plastic canvas (available at any craft store) and worsted weight yarn. Cut the pieces to allow the number of stitches shown in the chart for each side and the top, work through each of the charts, and then use a whip stitch and blue yarn to attach the pieces together and to go over the bottom edge so there is no exposed plastic showing.