Unlike knitting and crochet, you don't need to make a tension square, the thickness of the thread determines the size of the finished piece, the shuttles only come in one size.
Here are some pictures of a couple of tatted collars I have made. They are the same design, just different colours.
Detail of a cream collar showing pearl button for fastening:
A little more detail of the collar:
Here is a peach coloured collar...I couldn't fit it all on the scanner!