I've fed sweetbreads and you are right, it's an EASY way to feed organs. It's a little pricey in my area & for some reason I always forget to discuss price/availability with my butchers so they don't get it often.

Dinner last night:
Nanook: 3 chicken feet, chicken quarter, small piece of venison
Raustyk: 3 chicken feet, chicken quarter, med. piece of venison, egg
Kaige: 2 chicken feet, chicken quarter, med piece of venison
Indy: 2 chicken feet, chicken quarter, small piece of venison

Breakfast this morning:
1 beef trachea each
small-medium piece of beef
yogurt


Dinner tonight will be:
beef
beef kidney
egg
chicken foot