TF crack bunnies (G1, TFA, Movie)
1. green optics crack
G1
Upon seeing 'his' new sparkling: "Green optics?!? It was that Giant Earth robot, from Japan; Wasn't it?"
if megascream, then: "Wouldn't be the first one with a fetish for Japanese robots!"
(references Gundam series (many, if not all, Gundams have green eyes) and G1 'Enter the Nightbird' ep.)
Crack-fic, so no need to explain (rationally) how the cross-over love-child came to be.
2. Trine crack, Animated style
TFA
Starscream clones start to form Seeker Trines. Crack and silliness about who gets to be in whose trine and definite struggles for who is the leader of each. Opportunity for trines that could theoretically work, or for worst trine-combination ever (eg. Greedy!Dirge & Ego!TC both coveting/thinking-themself-capable-of leadership). Obvious opportunity for crack pairings being made to trine-bond. (I forsee angst for Slipstream.)
3. bonded device crack
Movie'verse (but could be TFA, because both 'verese have similar AllSpark 'rules')
A Transformer who has trans-scanned an Earth Bluetooth-capable vehicle/device is accidentally 'bonded' to Earth bluetooth devices' (i.e. mobile computer, phone, travel mouse, headset, etc.) Or a Cybertronian TF, on earth is accidentally bonded to an AllSpark-infused Earth Bluetooth device, which has become a TF (a car and a phone accidentally initiating protocols for bonding). Crack ensues: travel mice do strange things to bonded TFs, Scale issues betweeen bonded parters are/aren't a problem, etc.