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I was inspired by Kristie's blog post here: http://diynmbcprops.blogspot.com/2011/09/halloween-count-down-clock-prop.html and decided to try my hand at making my own NBC countdown clock.

Inspiration:
View attachment 502234
Clock at the Haunted Mansion

Things bought:
  • 18" grape vine wreath (craft store)
  • Acrylic plexiglass, min. 18" wide (home improvement store)
  • (6) led puck lights
  • Black acrylic paint
  • Plastic jewels
Things had:
  • (2) old 5.2v ac/dc adapters
  • (4) cup hooks
  • 1/4" hardboard
  • 1/2" mdf
  • old hard drive magnets
  • flat gray primer
  • flat black spray paint
  • flat white spray paint
  • burnt umber paint
  • black oil based sharpee
  • wood glue
Tools used:
  • Jigsaw
  • Table saw
  • Drill
  • Dremel
  • Nail/staple gun
  • Hot glue gun

View attachment 502050
Front and back cut from 1/4" hardboard with a jigsaw.
I made this 18" wide, but in retrospect I wish I'd gone about 2 inches wider

View attachment 502074
Sides of 2"x1/2" MDF attached with glue and brads. Flat black sprayed on inner edges

View attachment 502082
Hot-glued plastic jewels

View attachment 502114
Gray primer

View attachment 502122
Black wash & white dry brush

View attachment 502130
Rusty bolts; I used a burnt umber acrylic

View attachment 502138
Acrylic plexiglass sprayed lightly with flat white on the back.
Lettering done with a black oil-based Sharpee

View attachment 502146
Edges "silhouetted" with flat black spray paint.

View attachment 502162
Plexi hot-glued in-place

View attachment 502098
Old hard drive magnets routed into the corners of the back hardboard.
This was not the most effective way to attach the back. For the back of the clock face I just screwed it together.

View attachment 502106
Countersunk screws for the magnets to attract

View attachment 502170
Two cheap puck lamps disassembled and both leds hot-glued to back panel

View attachment 502202
Puck light lens glued in place over both leds

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Back panel on

View attachment 502058
Face plexiglass cut. Rear sprayed white. Front painted by hand with black acrylic

View attachment 504034
Face edges silhouetted with flat black.
Clock hands cut from scrap plexi and sprayed flat black. Attached with a nut & bolt.
I used two separate power supplies so I don't have to display the whole prop (i.e. just putting the base on a table instead of hanging it all), but I could have easily run all the leds off one adapter.

View attachment 502178
Grape vine wreath sprayed with flat black and dry-brushed with white. Attached with black zip ties.

View attachment 504050
Cup hooks to hold the face and base together

View attachment 504042
Prop complete!

Happy Halloween!
-Charlie


 
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