Certainly! There are "absinths" (mainly Czech crap) that purposely elevate Thujone levels, but they widely aren't recognized as legitimate Absinthes. During the time since the ban in Europe and the import ban in the US, Tzsechoslovalia (more specifically, what is now the Czech Republic) did not participate in the ban, and instead of actually making real Absinthe, steeped wormwood and other commonly used herbs in vodka or grain alcohol and sold it as "Absinth".
Once the hype about the "wormwood effect" became more commonly known than the actual characteristics of a drinkable Absinthe (nose, flavor, louche, not poisoning people, etc.) Certain companies in that arena started steeping with absurd amounts of wormwood to hype on the so-called "Absinthe High". What they made is a drink that tastes like 150° bug spray and one that is not real Absinthe. They still actually sell that garbage and you can get it shipped here, but I'd rather you have an experience that doesn't suck.
Though there are legitimate (and usually expensive) pre-ban Absinthes with the spelling "Absinth", the general rule is to avoid it, along with anything Czech and anything with green plants floating around in the bottle.
Here is a great FAQ from some guys who really know their stuff! http://www.wormwoodsociety.org/index.php?option=com_content&view=article&id=184&Itemid=235
