I do love triangles. I particularly love them when they come together to form different shapes and patterns. I could seriously put triangles into everything. Here is one of my favourite old quilts built on triangles and appliqué.
These next three are also amongst my favourites of my more traditional quilts.
It is all in the placement and the use of colour. There are dozens of different rulers that allow you to cut and sew triangles, but I am a bit old school and like to use actual maths. I have a handout that you can download to help with the calculations and sewing instructions which you are welcome to use if it will help.
Patterns for these quilts plus more are available at http://www.uniquestitching.com.au