Mare scent for stallion

Question
What product(s)are there to full the stallion into thinking the collection point for his semen is a mare in heat?  I am new to this and my vet does not seem to have the time to participate.  Thanks

Answer
I really don't know this answer to this question. We have never collected semen. A breeder friend of ours leads a mare in front of the stallion that is in heat and puts a "barrel" he used to collect the semen in front of him-It resembles a mare.the stallion mounts and thats it. I really dont know if there is a product like that to fool a stallion. Sorry I cant be aof any help