DIY costume help!

Pillowcase

I posted this already somewhere but I think this board fits it more so sorry about that.

Looking for cheap ideas for a DIY Mary Poppins costume. So I'm not trying to be an exact copy because if I'm honest going to a party dressed as a frumpy Victorian nanny doesn't make me feel particularly comfortable. So I've modernised it by using my own navy blue blazer and navy blue skater skirt (comes just above the knee). I bought a cheap hat and stuck some flowers on. I would like to by a blouse however I want it to be a nice one that I would be able to wear in the future. So please can you point out good places to look for a nice blouse for a young woman that's not expencive. Also any other ideas that stand out for you regarding Mary poppins and any ways of making it or buying it cheaply!

Thank you in advance.

tootallulah

You MUST have an umberella and some version of a carpet bag - a large handbag would do, charity shop or Primarni for the blouse????

Quackers1

White gloves and I think she always wore a flowery corstage on her lapel.