Welcome to the forum!
Although Experiment On is very practical ingame I have to warn you too: the worst thing that actually can happen to your item undergoing an experiment isn't the danger it can ashes down in flames but that it can instantly vanish. And there is no other way to get it back than to reload your game.
I learned this the hard way, after loosing my hardly owned 5star fridge while experimenting on.
I did preffer to reload the game and wasting 2 gameplay hours than to go through the whole culinary career again.
Sometimes offers need to be made to fully enjoy the game...
But the Experiment On can also be used to get really happy kids with a lot of LTW while they are still toddlers.
You've succesfully experimented on your cradle you've said? Well, do the same thing with gnomes and baby toys and put them around the cradle while your little one is in it, than the babysim will enjoy having the LTW's rolling in while sleeping. So many positive moodlets, your child sim will have enouth to buy some LTW rewards worth 10.000 points after growing up.