I've seen little keychains and necklace charms made from bling bag ponies, and my friends all want their first blind bags to be made into keychains, but I don't know where to start.  Any help, please?

1. Are certain ponies more susceptible to cancer than others?  I've seen it on a lot of Big Brothers (especially Barnicle), but I've seen plenty of earlier ponies (Minty, Applejack, etc.) that had nothing.

2.  Are there any examples of non-G1 ponies having cancer?

3.  This is more of a think-about-it, it's-your-opinion question:  do you think that the change in plastic in non-G1 ponies will protect ponies from cancer (either forever or temporarily)?  Remember the G1s have perhaps the softest plastic, and all generations after are considerably harder.

Thank you for your answers!

Okay, first, a couple of weeks ago, I went to the mall with my friends and discovered that they put in a Toys R Us Express completely under the radar.  And there I found two special ponies I had been searching for for about five months: 
Apparently in my city, these two are exclusive to this store.  I was so lucky to finally add them to my collection.  I got two Cherry Pies, one for my MIB G4 collection and one for customs.

Then, my friend called me over this past weekend saying that she found some ponies when cleaning out her closet.  They weren't MLP, but some really cute fakies:

Two days or so after that, my grandpa took me to the thrift store, where I found one bag full of MLP and fakies, and another pony in a different bag.  He bought both for me.   The single pony in the separate bag was a baity Hidden Treasure that I am in the process of customizing now.

And finally, I received my first of two G2 grails yesterday:

So yes, I'm swimming in ponies right now.
[stickied 26/5/12 - kiwimlp ]
[unstickied 28/5/12]

So now that the 30-day challenge is over, I'm going through some G2 fever and am looking to buy some that weren't sold in America.  My two biggest G2 grails are Wednesday Afternoon Bride and Miss Painter.  I'd like to get them in as good of condition as possible, but with them being so rare lately, I'll take what I can get!

My entire G2 wishlist is in my siggy.  My funds aren't huge right now (about $200), but post away and we can try to arrange something.  Thank you!

I don't know what it is with this pony's hair; it gets super dry and frizzy very easily.  I've even seen others with this problem.  Will somebody tell me what colors she has, or direct me to a color matching site for G3s?

When and where were they sold?  Like year, country, and store.  Does anyone know?

Like you know the pony's name but you have to stop and think before you speak or you'll say the wrong thing?  I have trouble remembering the name of G4 Plumsweet.  I always call her Sugarplum and then have to correct myself.