Anyone wanna help me with my sisters bday party?

My sister is turning 21 on Wednesday and because of the pandemic she obviously can’t go out to bars with her friends like she probably would have to celebrate, so I’m teaming up with her boyfriend to throw her a surprise roaring 20s gatsby Party (where just me and my fam and her BF will be in attendance). We chose the theme for a few reasons:

1. She loves the great gatsby

2. She’s 21 so alcohol has been off limits until now, the 20s speakeasys are all about drinking in excess and in secret

3. It’s a pandemic so partying is also banned, so this will be like a speakeasy

4. Roaring 1920s vs the so far not so roaring 2020s...

5. She’s 21, it’s a 20s party

Can anyone help me think of a clever thing to write on a big poster board for decoration? One I have in mind is “prohibition ends here: happy 21st bday” which I saw on Pinterest, but I think there are more ideas I just haven’t come up with them yet! If you have any clever phrases you can think of I’d really appreciate it!

Cheers 🥂