Amazon has the Kranich Electric Standing Desk Riser for $170 - $10 off with coupon (Clip Coupon) = $160 with free shipping. The tabletop is adjustable from 4.3" to 18.3" in height.
Amazon has the Swiffer Continuous Clean Air System Air Purifier with Triple Layer Filtration (SY1001NS) for $50 with free shipping. Walmart sells it for the same price.
Has good Amazon Reviews.
Amazon has the Master Lock Set Your Own Combination Padlock (178D) for $9.02 with free shipping on $25+ or with Prime. List price: $14. It features a hardened steel shackle with 1 " (25 mm) length, 1" (25 mm) width. Has good Amazon Reviews.