I'm surprised that no one has tried something I came up with that led my wife to seriously find me a surgeon. Since I have done some piercings on myself, I thought and still do that this would work with relative safety.
Items needed tor this are inexpensive. You need a piercing needle about 10ga. or larger. Dissolving sutcher that is tough and won't dissolve for about 2 weeks and a dull needle for the sutcher.
The plan: Clean and disinfect the scrotum with Bedadine or something similar. Make sure you sterilize the needles. Grab onto your testicle and pull it as far from your body as you can. Then with your free hand locate the cords and push them to the side and pinch your fingers on either side of the cord to hold it there. This would be easier with help, but is doable. If you had a clamp that could be used to hold the cord to the side, that would help. Take the piercing needle and push it through the scrotum skin next to where you are pinching and pass the sutcher through it and remove the needle leaving the sutcher passing through the holes. Make sure the sutcher does not pull through. Put a clamp on one end if you need to. With the piercing needle removed from the sutcher, thread the sutcher through your dull needle. Release the the cord so you can push the needle back through the hole the sutcher is coming out of, but on the opposite side of the cord and out the other hole. Now you have surrounded the cord and it can now be tied off. This is where you need a tough sutcher as you need to make it as tight around the cord as you can. You may want to go around the cord twice if you can. Once tied off and you don't want to change your mind, cut off the excess sutcher. Put some neosporin on the holes and put a band aid on them. Make sure when doing this that you don't hit a vain in the scrotum skin. They are easy to avoid. To stop the bleeding you can use a little pressure and or a septic stick might help. If you have a hot iron or soldering gun, you could cauterize it. Ouch. You can then do the other side or wait to see the outcome of the first side. This is not a tried and true method, just something I came up with that is simple and not very painful. After the initial poke of the piercing needle there shouldn't be much pain at all. Just keep everything very clean and there should be no problems. This will result in the same outcome as a burdizzo without the trauma and will work the first time.
My disclaimer: I have not tried this and I don't know anyone that has. It just makes sense to me. If you try this, it is purely your choice. This is just an idea I had and you can take it for whatever it's worth. If you end up in the ER, tell them some boy scout tied them off because you didn't want help crossing the street and you can't identify him because they all dress alike.

Do they still have boy scouts? What ever you do be careful. I would rather you find a surgeon and do it right. It really isn't that big a deal. Quit trying to crush them, it does more harm than good.