Carry a few slides to check it out before the meeting. Have a mostly empty carrousel in case your speaker shows up with slides but no carrousel. Look around nervously for the speaker. Do something that makes the meeting room your territory. This is important for a level of comfort of some members and recognition by new people, particularly if you do not have exclusive use of the room or hold meetings in various locations.
Some clubs have big banners with the club's name and logo.
This can be a great project for the artistic or sewing-inclined members. You can entrust telescope makers with the task but they are likely to make it out of plywood and aluminum and spend half the schedule engineering the transportation and erection methodologies. Make special 35mm slides with the club's name, logo and a welcome for projecting on the screen at the start of the meeting. Bring a copy of the agenda with all the details listed in Item 7. Yes, all the details.