But look, here's someone who's already done it:
(photo by Giles Farrington Flickr user giles 72)
He's called Morph, and he was created by Peter Lord and David Sproxton and a lot of other people (one of the modellers was Chris Entwistle).
This is Peter Lord with Morph:
By The Rambling Man with assistance from Jane Ormes - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=33563272
Morph speaks...well, it's been called gobbledegook, but Morph makes noises people can understand, so I don't see why that doesn't count as language.
Have a look at this very short film (it's just over a minute long) and see if you can understand him.
Morph's language would be quicker to learn than Esperanto , anyway, wouldn't it.
Word To Use Today: morph. This word comes from the Greek morphē, which means shape (and, by the way, shape is what my grandmother used to call blancmange. Coincidence, or what?).