My 6 year old wanted to me a Minion this year and wanted goggles with real lens. I have to say I got the hardware store ideal from on this site and walked isle through isle thinking up ideals so I took a gamble and just bought safety goggles hoping my idea would work and it was fantastic.
First you cut them in half and then cut the lens into circles (fabric scissors cut right through perfectly). Then I used hot glue gun and molded them into circle shape spray paint silver and walla, you have the best minion goggles! My son was very proud and got second place for most creative and not much time spent. The overalls just a little fabric marker.