Custom Calculators and Promotional Calculators with your logo imprinted. Custom Calculators are great promotional items as they are used almost everyday at the office making it a great corporate office gift. Some of our more economical models of promotional calculators are also great as marketing giveaways and trade show giveaways. If you do not see the Custom Calculator or Promotional Calculator you are looking for, please call us at 888-332-ADCO as there are many additional styles to choose from!