A daily planner is a gift every businessman can use. The best type is undated because it can be used any time. This is especially helpful if the recipient already has a planner for the current year and may think an additional one is extraneous. Don't break the budget by offering leather planners. Many synthetic materials look just as professional. If you know the initials of the men attending, you can engrave or emboss the planners to make the gifts more personal.
Another businessman's staple is a briefcase or laptop bag. A laptop bag should contain pockets or compartments to hold paperwork. Select a lightweight or weather-resistant material for year-round functionality. If you want to use your logo on the outside of the bag, select a modest size for the imprint, otherwise the participant may feel like he is carrying a big advertisement.
Offer your workshop participants a gift certificate for an additional workshop session on a similar topic. For instance, you might give a coupon for a free coaching session or financial session with one of your teaching experts.
If the men's workshop is based on personal improvement or self-help, a gift the participants can read or watch to help them gain additional insight could be greatly appreciated. Give a copy of your own favorite inspirational DVD or book.