Thought I'd make my own too - might not be very long but I really want these (and I don't care whether they are realistic hopes or not), so without further ado:

[color=#FF3377]Poppin'Party[/color]

1. First Love Academy (VOCALOID Rin, Len & Gumi)
2. Gomen ne, Iiko ja Irarenai (Kill la Kill ED 1)

[color=#FF3377]Poppin'Party[/color] x [color=#FFDD00]Kokoro[/color]

1. Black Cats of Halloween (VOCALOID Rin & Len)

[color=#FF3377]Poppin'Party[/color] x [color=#3344AA]Yukina[/color]

1. Garasu no Hanazono (from Love Live! SIF)

[color=#EE3344]Afterglow[/color]

1. Uragiri no Yuuyake (Durarara!! OP 1)
2. Mikansei Stride (Hyouka OP 2)
3. Daze (Mekakucity Actors OP)
4. Sirius (Kill la Kill OP 1)
5. Starting Now (Kono Bijutsubu ni wa Mondai ga Aru! OP)

[color=#33DDAA]Pastel*Palettes[/color]

1. Tsukematsukeru (by Kyary Pamyu Pamyu)
2. Plastic Love (by Takeuchi Mariya)

[color=#3344AA]Roselia[/color]

1. Ambiguous (Kill la Kill OP 2)
2. Kyoumu Densen (Another OP)

[color=#FFDD00]Hello, Happy World![/color]

1. Ninja Re Bang Bang (by Kyary Pamyu Pamyu)
2. Ah, It's a Wonderful Cat Life (VOCALOID Len & Gumi)
3. Renai Circulation (Bakemonogatari OP 4)

[color=#FFDD00]Hello, Happy World![/color] x [color=#33DDAA]Aya[/color]

1. Be My Angel (Angelic Layer OP)

[color=#33AAFF]Morfonica[/color]

1. Yasashisa no Riyuu (Hyouka OP)
2. Taishou a (Higurashi no Naku Koro Ni Kai ED)

[color=#22CCCC]RAISE A SUILEN[/color]

1. Higurashi no Naku Koro ni (Higurashi no Naku Koro ni OP)

[color=#3388BB]MyGO!!!![/color]

1. Imagination Forest (VOCALOID IA)