I use the 3M double sticky back for stuff like that and never a problem.
On little stuff I take one side of the film off and stick it to the emblem, then trim it to fit the emblem exactly then peel off the other side of the film and stick it on. (In the right place the first time or else :D)
It'll work fantastic for what you need if it works this well on small stuff.
I wanted this emblem here and it's nice and solid.
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