I really love the brand OCC(short for Obsessive Compulsive Cosmetics). They're lip tars are absolutely stellar, and if you've never used them, get yourself to the nearest Sephora, and check them out! At $18 a piece, they last well over a year, and you only need a drop(really!). They're a very highly pigmented makeup, and stay on all day long.
They aren't sticky like you would imagine, but a warning I do have is that if you have a habit of touching your lips a lot, lip tars may not be the right choice. When out and about, not near any makeup wipes, if the product gets on your skin, you can expect it to be there for a while.
Tell me your thoughts on Lip Tars in the comment box!