http://www.dvice.com.au/sex-toys/anal+toys/silicone+buttplugs/1013-pearl-silicone-butt-plug-
Dvice - Pearl Butt Plug

Specs: 45 x 120mm
Silicone

Pros
Great build quality
Amazingly comfortable (I sometimes sleep with it in)
Wide range of colours and a carry bag is included

Cons
Its a good starter plug but its nothing like the advanced plug they advertise it as
Despite being silicone it has developed a difficult to remove smell after prolonged use

Overall - I love the dvice store, its the only quality retailer we have in Australia with reasonable prices. THe prices are low because the store owners design and manufacture the toys themselves. I only wish they made serious sized toys

I know there's a link in this thread for square peg toys, but these links here, go to a site that display demo-videos for a couple of the better/more interesting toys in the line up.
I've looked @ them numerous times, they are quite enjoyable, hope you enjoy them, too 
Scroll to the bottom of the page to see the video

The Razorback
http://www.mr-s-leather.com/D727/razorback.html?id=wsWYNo8F

This is a bit of a long (okay, wide) shot, but does anyone have a review of the Ream & Dream?

Dildozer, A.K.A. The Grinder
I found this link on this site somewhere (thought it was in this thread) but, couldn't find it again to add a comment , I did a search for the post under the two names with no luck so, I thought I'd re-share it with everybody since it's such a phenomenal deal for such a large toy.
$9.95 w/$12 S&H it goes for much more elsewhere
I ordered mine from the link I found & it's legit, I received mine within a week, just got through with my 1st run on it & wow, it's got a nice ridge on it....neither super soft(too squishy) nor, hard ...I got mine in black...pretty smelly, maybe the fleshtone wouldn't be so strong, (if that's a deciding factor for anyone) whether it stays that strong of a smell- I don't know, maybe just washing it well the 1st time does the trick
anyway, my 2 cents, enjoy

http://www.things4fun.com/search.aspx?find=grinder

MEO anal stretching ring

Five stars!

Well made and gives a good stretch.  I am able to insert the end of an 18" double dong into the hole and insert the whole thing in me for that deep and wide stretch.

This is the large size.

http://www.meo.de/catalog/product_info.php?products_id=8616&osCsid=211ce8dde6c31089d883761e7cdc7b05

I love the Tantus A Bomb so much that I now have two - one to wash and one to wear! I think that the diameter is 2.6" and insertable length is around 5.5". It is fairly firm with a small amount of give and,initially, I was not able to keep it in for long without some discomfort and getting it out was quite a struggle. I can now keep it in for hours, if required and remove it quite easily which just goes to show what regular use/training will do for a tart's arsehole. I am now training with the Tantus Tex which I also love but can only insert slowly and keep in for a minute or so.I think the diameter is 3" or maybe slightly more and on the one or two occasions when I have sucked it in right up to the base it has been virtually panic mode to get it out with images of embarrassing hospital visits flashing before my eyes. Even that one is getting better with practice.
  The advantage of all these Tantus products is that they are made of medical grade silicone and can be boiled,bleached or put in the dishwasher to keep them fresh. In our house they are regularly put into the dishwasher ( that's me! ) but cleaned with bottle sterilising fluid.

  Pros   Quite a decent size and give a lovely stretchy feeling.
           Excellent for keeping fresh and hygienic.

  Cons   Expensive.
           More difficult to purchase these days.