OP: If you have the space, maybe get a credenza that fits your space, a pair of isolation stands (e.g. IsoAcoustics Aperta 300), and call it a day.
If you cannot do that, look for stands with a wide and sturdy base, and where the columns can be filled with sand or kitty litter. Second, use something like blu-tak to stick the speakers to the top of the stands. Third, see if you can put small ottomans right behind the speaker stands so they can provide support if the baby tries to use the stands to practice standing up.
By the way, no speaker or audio component has ever replicated the joy of seeing my baby stand up on his own without any support from the parents. Enjoy the moment! It'll be gone before you know it :)
If you cannot do that, look for stands with a wide and sturdy base, and where the columns can be filled with sand or kitty litter. Second, use something like blu-tak to stick the speakers to the top of the stands. Third, see if you can put small ottomans right behind the speaker stands so they can provide support if the baby tries to use the stands to practice standing up.
By the way, no speaker or audio component has ever replicated the joy of seeing my baby stand up on his own without any support from the parents. Enjoy the moment! It'll be gone before you know it :)