We are finally getting some carpets/rugs through the sims3 store and with the Supernatural Expansion. Unfortunately some of the new store rugs are really hard to recolour to something nice looking and other carpets got the fixed stencils (that is what I call it). Also a lot of people might not want to use store content. So if you want to make your own carpet .... without using custom content of course...... there is a way.
How can we do that. Simple - just experiment with patterns and then cut and rotate the tiles. I especially loved to do that with the India and Mexico carpets.
Cut & Rotate
To cut a square tile so it becomes a triangle just press Ctrl+F and then you can place it. You can rotate it before placing by pressing "." or "," (once or several times).
In the picture you can see on the left one square tile which i then cut out. I then placed 3 triangles (facing out so you can see it) - with rotating it you then can fit the triangles together to new square tiles.
For even more details place the "Detail tile for carpet borders" tile around your creation. to change the dark wood of the detail tile just choose the pattern of your liking. You can also rotate the triangle cut outs from the detail tile and make something that looks like a little bug or eye...