Tell me your foolproof winged eyeliner hacks please!

[Whatthefreakinwhatnow]

I'm going to an event at the end of this month and have a beautiful vintage 50s dress to wear, and will be having a 50s updo for my hair, so I need the eyeliner to go with it! Try as I might though, I can never get both sides the same and it's très annoying!
Anyone have any foolproof way they can share with me so I can master it in time? TIA!

This is what I'm aiming for!

Use a little piece of card or paper and angle it underneath your eye, draw the wing and then connect it to your normal line, hope that makes sense?

Have a look on YouTube, there's lots of tutorials on there, some say to use a spoon to get the right shape.

Ahhhh card or a spoon would probably make sure the wings were the same; then the line bit is a doddle. I'll check out YouTube and see what's there, ta!

I find sellotape helps get the line

smarties doesn't it smudge when you pull off the tape, or wreck your foundation if you wear it?? I'm intrigued!

I've got the bobbi brown gel liner