I can think of a couple of ways to do this, the organic and the synthetic way.

Firstly the synthetic way: you just make a perfume or smth that smells like ball sweat and then you spray it around. YAWN! BORING!

Secondly the organic way: I don’t think ball sweat is going to maintain all of its nuances outside the crotch for a long enough time, and just like with perfumes some of the finer notes only come out in conjunction with body heat and time. Therefore what we will need is…

• A tent
• A portable radiator
• An air humidifier
• Clothing line, crafting material and plenty of clothes pins
• Two dozen + one male volunteers
• Freshly washed cotton underwear for the volunteers to wear (avoid synthetic fibers like polyester or elastene because they will smell rancid)
• A soccer field and ball, sports drinks and maybe some food to get them motivated

So what you do is that you advice your male volunteers to wear the underwear as normal for at least 12 hours before meeting with you. As for the tent you set up a tent with the radiator and the air humidifier close to a soccer field. Set up the radiator so that the temperature in the tent mimics a male human’s body temperature during exercise, aim for around 37-38 degrees celsius. Turn on the humidifier. Install the clothing lines inside the tent. Multiple clothing lines is better than just one, make the most of your space. Prepare the clothing pins on the line.

Have the male volunteers divide into teams of twelve to play soccer against each other for about an hour or two, your remaining volunteer is on standby. Make sure you keep them hydrated and motivated to keep playing. After they are finished, ask them to return their underwear to you. By now your tent should be warm, humid and have the clothing lines ready. The next step is time critical. Once all the underwear are gathered, go to your tent while trying to let as little of the warmth and humidity escape as possible, and hang the underwear on the clothes lines. Have sex with the remaining male volunteer and enjoy!