Hot Iron Transfer Pen by Hemline
Easy and quick to use, clear and easy to see on light colour fabrics
This transfer pen leaves a permanent mark, so must be covered with embroidery etc. as it does not wash out. I recommend a practice run first and make sure the line is fine enough that your embroidery will cover it.
Draw or trace your design onto paper
Place the paper, face down onto the fabric
Using a hot iron, press for up to 10 seconds. For larger designs, repeat the process to ensure that the whole motif has been transferred