Yeah, that's why they are asking for "valubaubles"...just in case someone has a few pieces of old family heirlooms sittting around that they aren't gonna need in paradise.
While I'm sure that they'll take anything you'll give 'em that has any value, I suspect that the main reason for the use of that phrase is so they can claim that they're not asking for money but reinforcing the need to honor Jehovah and that some can only do this with their time (a "valuable thing" to be sure). I.e. they're pressuring for money but they do it in a way that anyone that feels uncomfortable about it will have a way to rationalize it.