If someone is stupid enough to pay them to do so, then yes. They would only be satifying a demand in the market to confirm that what you have is genuine tat of the highest quality. Nothing finer - or so they say..... I reckon, if you looked around, you could find an even bigger load of b*****ks somewhere.
 
	Edit to say - found some. I wonder if they will grade as premium quality?
 
	https://www.google.com/imgres?imgurl=https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2F3%2F37%2FCriadillas_de_Choto-_Madrid.jpg&imgrefurl=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FTesticles_as_food&tbnid=NSrnzvae4TXETM&vet=12ahUKEwi596OP_tfuAhUJ-4UKHRr7A8cQMygAegUIARCYAQ..i&docid=fieVeu65fqJ6RM&w=2592&h=3888&q=bulls testicles images&client=firefox-b-d&ved=2ahUKEwi596OP_tfuAhUJ-4UKHRr7A8cQMygAegUIARCYAQ