Yes there is some overlapping which causes the issue. I have worked to MIB ponies I or one of my two friends own to put together my lists. Shelti's website also has a lot of MIB pictures -
http://shel-tponies.com/The lists are a lot to list here but here is the ribbon one to start with at least...hope that helps.
Aqua with Gold trim - Princess Royal Blue [Y5-US]
Aqua with Gold trim - Princess Starburst [Y5-US]
Aqua with Gold trim - Princess Amber [Y5-UK]
Aqua with Gold trim - Princess Sapphire [Y5-UK]
Aqua [Dark] with Gold trim - Princess Sparkle [Y5-US]
Aqua [Dark] with Gold trim - Princess Amethyst [Y5-UK]
Aqua [Dark] with Gold trim - Princess Misty [Y6-US]
Aqua [Light] with Gold trim - Cloud Puff [Y5-UK]
Green with Gold trim - Wind Drifter [Y5-UK]
Navy with Gold trim - Star Dancer [SO]
Pink with Gold trim - Princess Primrose [Y5-US]
Pink with Gold trim - Princess Serena [Y5-US]
Pink with Gold trim - Princess Aquamarine [Y5-UK]
Pink with Gold trim - Princess Ruby [Y5-UK]
Pink with Gold trim - Wingsong [Y5-UK]
Pink [Dark] with Gold trim - Princess Taffeta [Y6-US]
Pink [Light] with Gold trim - Sky Rocket [SO]
Purple [Light] with Gold trim - Princess Sunbeam [Y6-US]
Purple [Light] with Gold trim - Star Hopper [SO]
Purple Pink with Gold trim - Tropical Breeze [Y5-UK]
Purple Pink with Gold trim - Princess Pristina [Y6-US]
White with Gold trim - Princess Royal Blue [Y5-US]
White with Gold trim - Princess Tiffany [Y5-US]
White with Gold trim - Princess Pearl [Y5-UK]
White with Gold trim - Princess Sapphire [Y5-UK]
White with Gold trim - Princess Moondust [Y6-US]
White with Gold trim - Sunspot [SO]
Yellow with Gold trim - Princess Dawn [Y6-US]
Yellow with Gold trim - Twinkler [SO]
Yellow [Light] with Gold trim - Napper [SO]