Last Night On Earth: Killer Old Betsy Combos

The Old Betsy card text :-
At any time, discard to place Old Betsy in any space on the board. No Zombie may move from that space this turn. In future turns, Zombies trying to move from that space must first roll a 5 or 6 to escape. When a Zombie escapes, remove Old Betsy from the board.

The Survival of the Fittest rules for Combining Items has this to say regarding Old Betsy:-
Old Betsy combined with an Item means it can be delivered to another Hero in Old Betsy's deployment space.
Old Betsy combined with Gasoline allows a Gas Marker to be placed in Old Betsy's deployment space.
Old Betsy combined with Dynamite, by a Hero that has a Fire Item, allows the Dynamite to explode in Old Betsy's deployment space.

And of course:-
(as always, Betsy is unaffected by Dynamite or Gas Marker explosions)

Previously I'd thought Old Betsy kept the Zombies occupied in the space by chasing them around. Now I'm thinking it's because she's all leathery skin and gristle, too tough to eat.

Regarding Combining Items, it's a shame Betsy + Fence Post doesn't allow her to confuse Zombies in adjacent spaces. (Or to play at jousting with them.)
And even more of a missed opportunity: Betsy + weapon does not create a Gammarauder.

Anyone else have any weird thoughts for killer Old Betsy combos?

IIRC, there is a zombie betsy on the flip side, so there must be a way to kill her somehow. Only had her pop up in one of my games though. I think you should be able to combine her with fire and throw a stick of dynamite which she chases, exploding in that square, or throw something else and have flaming betsy detonate gas cans she runs into. Make that old girl mobile!

I've played 5 games with SOTF now, and still haven't found the Duct Tape. I want to combine me some stuff!