Best stands so baby doesn't knock speaker over

We used to have these things called "parents" and "grandparents" that would keep an eye on baby. Also back then we had this technology, I forget the name for it, enabled a makeshift wooden gate about three feet high to be placed across doorways. This was more for a toddler than a baby. I guess nowadays no one even knows the difference. 

We also used to keep them away from chemicals and stuff under the kitchen sink. Electrical outlets. Stuff like that. 

Nowadays I guess only highly trained specialists qualified to watch a baby, no one concerned about anything but their speakers. How times have changed.

Anyway...Moving on...

Those of us who have had children who share our living spaces, who are free to explore, and who don’t live behind gates, might be able to share some more positive ideas.

When a baby is only crawling or toddling, I found it was when they reach up and pull on things to try and stand that the trouble starts. So a shiny wrap around the stands might help. Something which means they can’t get a grip and pull the stands over onto them. Also, how about running a thin wire from the back of the speaker upwards to the ceiling. Then if the speaker does start to fall, the wire will stop it crashing to the ground on top of your child. 
It’s when they start running around playing indoor football that your problems really start! 

don't do it

I've had many kids and many speakers. Only way is to ensure that kids  can not get to the stands/speakers at all. We used folding gate like things which created a barrier around the speakers which yes are ugly. Out of reach is the only other viable solution I know if if you can put the speakers on a bookcase or piece of furniture until the kids are older. Even with 100lb stands they can still rock them and topple the speakers over on the floor or worse their heads.  

FWIW, we only had to do this for a couple years. Of course there is the tweeter poking issue but that argues for horns. 

Dtx, simple. You get high strength scotch double sided mounting tape, the red stuff. you run three long strips on the bottom of the speaker and three on the bottom of the stand. If you have a carpeted floor run four 3 inch self tapping wood screws into the floor. Drill pilot holes in the base of the stands and run the screws through the carpet into the subflooring. Trust me on this. You will have a very hard time separating the speaker from the stand. A child will never do it. Removing the screws is far easier. You will not leave a visible mark in the carpet.