We strongly encourage you to support your local merchants, particularly those helping preserve and spread knowledge about classic cocktails and good bartending skills, whenever possible. San Franciscans, for example, should visit Cask at either 3rd and Market or their Rincon Center location. If you can't find these items locally, though, here are some links to other sources. (We may receive associate payments for some of these links, so using them is a nice way to support our site. Thanks!)
flexible cutting boards, from Amazon, set of 5 $10.
Beaba Multiportion Freezer Tray in green or orange, from Amazon, $20.
Tovolo Perfect Cube silicone tray, from Amazon, set of 2 $15.
Heavy Duty Stainless Steel Barspoon, from KegWorks, $5.
Pyrex 500-600ml beaker, from Amazon, $11.
Oxo Mini Angled Measuring Cup, from Amazon, $9 (Once upon a time you could get a set of three for $10 , then everyone figured out how great these are for cocktails; keep an eye out for these at cheaper prices offline).
Cutting & garnishing:
Zyliss Easy Grip channel knife/zester, from Amazon, $9.
Oxo Good Grips 6.5” Santoku knife, from Amazon, $20.
Shaking & pouring:
Oxo steel Hawthorne cocktail strainer, from Amazon, $10.
OXO mini strainer, from Amazon, $9.
Angostura Aromatic bitters, from KegWorks, 4oz $9.
Fee Brothers Whiskey Barrel-Aged bitters, from KegWorks, 5oz $16.
Berg & Hauck's (a.k.a. The Bitter Truth) Creole bitters, from KegWorks, 5oz $20. (Better than Peychaud's)
Angostura Orange bitters, from KegWorks, 4oz $10.
Regan's Orange bitters, from KegWorks, 5oz $7.
Fee Brothers Lemon bitters, from KegWorks, 5oz $9.
Fee Brothers Rhubarb bitters, from KegWorks, 5oz $9.
Luxardo Gourmet Maraschino Cherries, from KegWorks, $18.
Sweeteners & thickeners:
Petite Canne sugar cane syrup, from KegWorks, 500ml $13.
Gum (gomme) syrup, Orgeat, Grenadine made by Small Hand Foods, distributed to various small providers so far.
SodaStream soda maker, from Amazon, price varies by kind.
Books & magazines