Yes. The recommended printing size is the standard business card size.
Please do not burn your familiar. This causes them pain and distress.
The recommended procedure is to place your familiar on a large rock or similarly raised surface and tell it how you'll never forget it's companionship but it's time you part ways as they are home now. Following that, turn and walk away slowly as tears well up in your eyes. Do not be alarmed if this is accompanied by an orchestral swell and visual montage of your time together.
The final step is to never forget your friend.