PinkieShy Journal Skin

Warning: the following is about MLPFiM pairings.

PinkieShy isn't exactly my favorite pairing, but it works.
I personally prefer to see Twilight with Pinkie and Rarity with Fluttershy.
Pinkie was the first pony Twilight met in Ponyvile and was quick to give her a welcome party. Twilight has stalked Pinkie in Feeling Pinkie Keen and Pinkie has stalked Twilight in Green isn't Your Color.
Rarity and Fluttershy go to the spa together and know about fashion.
PinkieDash works. Pinkie has chased Rainbowdash in Griffon the Brush off and Party of One. Pinkie followed Rainbowdash when she got out the train in Over a Barrel.
But I think I like AppleDash more. Rainbowdash almost kissed Applejack in Running of the Leaves and it is implied they kissed in The Mysterious Mare Do Well.

Spike and Applebloom haven't interacted much in the series but I think they go well together.

I also like Lyra with Bonbon, and Vinyl with Octavia.