New emblems come with adhesive. You can buy the small white plastic grommets for the trunk star holes.

Oh, you wanted to reuse the emblems? You are on your own... But I'm sure 3M makes some product like emblem adhesive... Or find some adhesive double stick tape somewhere, or just off the shelf white stuff if you are in a hurry.

Rgds,
Chris W.
'95 E300D 359K

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Objects in closer are mirror than they appear.