Ditched Bed Extender, what should I use to cover the holes left behind?

For now, I still have the hardware. I considered a couple bottle openers but I think it's too low. Other considerations;

1. D-Rings - not sure how strong this sheet metal is so I could only use it for lighter things.
2. Bed Stiffener - not sure its wide enough to cover the holes and has a hefty price tag.

Any other thoughts? Thanks

 

Bed lights?

http://www.ebay.com/itm/14-17-TOYOT...ash=item3d36f481b9:g:VGoAAOSwsW9Y28LU&vxp=mtr

 

I can check my bed stiffeners and see if they cover the holes for you. When i drilled the holes for the extender initially i sprayed them with black rustoleum so there wasnt any bad spots. When i ditched the bed extender they were fine for years.

 

Go to ace and get some little rubber plugs.

 

These are the @Bentrodder supports. They cover all but one.

 

http://www.everythingcarts.com/p-2810-78-christmas-tree-push-rivet-for-spike-plates-single.aspx?gclid=EAIaIQobChMI8I3G-f7t1AIVRIJ-Ch2MsAEPEAQYASABEgLRMfD_BwE

 

pop in some christmas tree fasterners in the proper size .50 a piece at hardware or auto parts store

 

Thanks everyone, forgot to check back. I think my take away from this is to just leave the bed extender brackets in place. The Christmas tree idea is okay but i misdrillled a hole on one side so the plugs would reveal that. Another thought is to put a couple stickers there.

 

Pick up some black RTV or silicone