I'll try the scattergun approach - pick what you like out of this lot !
"It's a Horse of a Different Colour".
" He's sulking 'cos we didn't buy him a set of racing plates for his birthday !"
"Is it a stealth Horse ?"...."Well, it's not making much of a noise now !"
Dobbin (thinks): "Don't reckon much to this camouflage - stripes run the wrong way !"
"It's a Trojan Horse really, but this was the biggest we could afford after the SDSR".
"I wouldn't enter him for the National, Sarge - he'll never get over Becher's Brook with this lot on !"
"Well, at least if he's no use we can eat him - which is one selling point over the F-35 !"
"Remember the Tin Man ? Well....."
"It's to dazzle any snipers there might be around ! (we got the idea from DeLorean)".