Feed her in her cage - ditch the separate container.
I'd like to find out that person who started the old "if you feed them in their own cage they'll be more prone to bite you" rumour and give them a wedgie.
It's BS.
Feed your snake in it's cage. If you feed it frozen thawed, you won't have to worry about what is more prone to biting.
Instead of trying a bunch of exotic tricks that will probably result in only stressing your animal out, thaw out the prey item and dangle it in front of your snake. If it doesn't take it, simply lay it close to the animal and walk away.
Start there. If your snake is still not eating, then you can try some other techniques - but first try the simplest, less stressful method.