Ideas on how to tell DD she's going to be a big sis?

What are some really cute ways to tell a 5 year old girl that she is going to have another sibling? She's been through this before so she understands the concept of a baby in my tummy but we never "announced" it to her because she was only two when we got pregnant with her brother. But now that she is 5 I really want some great ideas to let her know she's going to be a big sister again!

Thanks!

Watching, cos i want ideas too!
My son went through this when he was 5, and we didn't do anything "too special", though he was still REALLY excited when we gave him a 'big brother' shirt and told him. and now i want to do something special for my 7 & 2 year old to tell them  

Quoting Chef Mommy:" What are some really cute ways to tell a 5 year old girl that she is going to have another sibling? She's ... [snip!] ... brother. But now that she is 5 I really want some great ideas to let her know she's going to be a big sister again! Thanks!"

I told my 4 year old that she was going to be a big sister, then I gave her the job to tell my dad (who I was scared to tell) and she had a blast, and still does, telling everyone she's going to be a big sister!

Maybe show her an ultrasound pic and ask her if she knows what it is?

I wish I did something cute   I told my 4yr old "you're going to be a big sister" she was really excited though, lol.

I showed her the u/s and asked her if she knew what it was. Then we talked about it. Then she got to tell everyone since I hate saying things like that haha.

I saw a really cute video where they took this sister to an ultrasound and she got to see the baby and she started crying I think it was so cute she was happy  

I just told my 4-yr-old lol but he doesn't really care, or at least not yet...