The Icicles No. 22 and and Icicles No.1 are great for anal. If you like texture the No. 1 is for you, but if you like smooth than the 22 is for you. There are also anal butt plugs like Moon shine and the sexy shades that are affordable glass plugs. It really depends on what you want. If you want something longer than you want a dildo, but if you want something short than plug is the way too go.
I have Moon Shine Butt Plug, Icicles 22, and Icicles 1
and my favorite for anal is the No 1. It has perfect swirled texture, is thinner (so easy to insert with little lube), is longer (so it reaches right up in there), and has a nice ball on the end to keep a hold of.
The Icicles 22
is thicker than the No 1, has no texture, is longer too, it has a bulbed head (for popping), and has a nice handle on it (better than the No1). This is my second favorite, but I find it is not easy to insert at first and requires warm up and lots of lube.
The Moon shine butt plug
is short, with a head like the 22 (so it is thick), it requires warm up and lube, it doesn't have a handle (just a flared base). I find this just too uncomfortable for my anal tastes.
I also have the Blue Swirl G
, which is curved and texture-less. It is suitable for anal, but it thicker and hard to insert without warm up and lube.
All of these are suitable for anal and affordable.