I need an exciting off-beat opening vs 1. e4

Hello, everyone. I'm looking for an off-beat opening to play vs 1.e4. I've been playing the Sicilian, more specifically the Najdorf almost since I started playing and I'm looking for something new and exciting that doesn't transpose into well-known theoretical openings easily (My other current openings are: Blackmar-Diemer Gambit, Budapest Gambit and Trompowsky Attack). 

All suggestions are welcome, thanks. 

Well off beat and exciting is the Latvian Gambit.  e4 e5 nf3 f5.  

That does look like a good candidate. The only problem is since I don't ever play 1. e4 e5 I'll have to find something to play vs Vienna Game and King's Gambit.

This is is exactly what I would say.

Scandinavian is good.

You can also check the Pirc/Modern system with a kingside fianchetto.  It leads to tactical positions and is played occassionally at the GM level.

b6 isn't the most exciting move in the world, I must say.

I'm not sure if I'd consider The Scandinavian an off-beat opening. I mean, it's got more than 16000 games played in chess.coms database which is more than the Petroff defense.

Again, the Pirc has been played 15000 times up to 3. g6 in chess.coms database. I'm really looking for something lesser known. Thanks for the reply though :)

That's a transposition into the Van Geet.  Just roll with it as 2...dxe5 3.Nxe5,Bf5 4.Ng3,Bg6 is like a Caro-Kahn but without the c-pawn committed. 

You can play the Alekhine 1 e4 Nf6. It's definitely exciting and forceful. I hope it's offbeat enough to you.

I understand how White can be forceful. How can Black be forceful? I also don't agree that it is exciting.

I will consider it but I never really thought much of an opening in which you move your knight 3 times in 4 moves, personally. It just seems to break down what I know about the rules of the opening

Best comment.

Because I want to study one opening and have a good understanding of it then use it so I'm not spending 10 minutes in game time working out a strong move in a sharp position on move 6, otherwise I'll just be at a disadvantage in position (which wont give me a good experience of the opening). I don't play 1. e4 therefore I don't have a huge knowledge of blacks replies, consqeuently I don't know which of blacks replies are the most interesting so I'm getting some suggestions.

He is asking for recommendations so that he can try them out and decide which he likes to play. He isn't going to force himself to play an opening for a year based solely upon recommendations without having tried it out. Worst comment (that is, until you topped it Mandy).

1.e4 e5 can be exciting hear are the Lines I play:

two knights defense  vs. giuoco piano

Falkbeer counter gambit vs. the kings gamibt

you can play the schliemann defense vs the ruy lopez

I don't see the other lines after 1.e4 e5, like the veinna game enough to worry about having a specific line for them. 

1e4 e6 2d4 a6 !?

If you want sound stuff you could try the Aleknhine Defense. Also you could try looking for offbeat lines within the French or Sicilian complexes.

play 1.e4 Nc6!!! The Nimzovich defense if they play 2.Nf3 then there is 2...f5 the Colorado gambit

1....e6 with an early Qb6 or Qa5 in the first few moves is always exciting, and is pretty ofbeat. Expecially good otb