My store only had Twilight and Pinkie Pie.  I've got about 4 other Mc Donalds that are close enough to go check though that I'll be hitting this weekend.

She might mean these rings?
http://www.disneyengagementrings.net/

The Rapunzel one is really pretty (and the Sleeping Beauty one is nice) but the rest are too gaudy for me personally.  I'm a small ring gal.

I wouldn't be surprised if we got a Trixie just because her accesories (cloak and hat) are so super easy to translate over to the Build a Bear clothing.

I'd actually like a Trixie but I'd like Applejack 100x's more.

Is it a pony specific convention or some other kind of convention?  I know when I was selling at an anime convention once I did a set of the Mane Six dressed up like anime characters that had some sort of similarity to. (For instance, Fluttershy was a pokemon trainer, Pinkie Pie was Excel from Excel Saga, Twilight was 'The Paper' from Read or Die).  If it's some other convention you can try to mix the too things, not a whole lot of people do that and it's pretty unique. :3

You could also try pairing the ponies (whether that be in shippable pairs or just the two being friends and doing something fun, like Rarity helping Pinkie Pie decorate a cake or whatever).

Truth be told I have so many prints that I never really (or very very very very rarely) buy them myself and am much more interested in commissions (even if it's quickie sketch ones) when I go to artist alleys, so if that's a possibility you might want to consider that too.

They did such an amazing job of telling that story through the music and artwork even with next to no dialogue, it always impressed the heck out of me.  I was actually just listening to the soundtrack last week!

It sounds like you requested money from someone at some point and they never paid (most likely there was a glitch somewhere or it was a duplicate request) so it's probably been sitting in limbo in their account and they just deleted it to clean it out.  No money goes anywhere, it's basically just like.. the decline of an invoice that you sent, so there shouldn't be any money moving around.

You might be able to confirm that by looking to see any transactions you've had with that person in the past?

I had to search three different Walmarts but I finally got one of the Rapunzel tins.  It didn't look like they had many either, the box look like it held like.. 2 of each design and that's it.

Now I just need to get to Target at some point to hopefully get Belle for my boyfriend. <3

Completely saturating it (aka putting it in the wash machine) will almost certainly destroy the voice box.  Those kinds of 'electronics' aren't meant to get wet.  For instance, I had a keychain that made horse noises, that my brother dropped into a puddle (for literally seconds).  Even without prolonged time in the water it started making 'dying/warped' sounds and within a couple days no longer worked at all.

If it says Surface Wash only then it's highly unlikely they encased the voice box in anyway to try and protect it.