Step 1. Go To Towns Preferably This Barton
Link: ]Data Validation Error | Gaia Online
Step 2. Download Tamper Data
Step 3. Run Tamper Data Once You Open Towns On The Link Above.
Step 4. Click And Pick Up A Piece Of Trash.
Step 5. Change Market Place ID To 1404 Which is The Angelic Halo.
Step 6. Press Tamper Submit! And BAM You have a angelic halo.
Too lazy to try, not that I think it would even work.