Have an array want to mirror that array

So I have an array

$wibble = 'a','b','c','d','e','f','g','h' 

I want to create an array that includes the mirror of that array (I dont want to just reverse it)

$wibble2 = 'a','b','c','d','e','f','g','h','h','g','f','e','d','c','b','a' 

without typing that out
I was pissing around with count and other things

-$wibble.Count .. $wibble.Count returns -8,-7,-6..-2,-1,0,1,2..6,7,8 

Ideas anyone
Edit, the actual array i’d be using is dynamic and I wouldn’t have the count/values before hand

submitted by /u/BlackV
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