There is a MAC in the Avatar Chat forum, however, it has not been updated in a while. It is a great basic tool though!
=)
It is downloadable. The shop system is being redone, so it might be possible to preview items.
An online version of the MAC will come eventually, but it's on a long list of things to be done, so there's no ETA on that. :yes: For now, you can use the downloadable version. Get thee to the MAC!