Step 1: Remove dirt from the succulent. Clean the roots, if you wish to leave them intact. (Either way, the recipient will be able to replant it, since succulents grow from cuttings.)
Step 2: Get about six inches of floral wire and carefully thread it through the succulent stem. Make sure to start at the highest point of the stem.
Step 3: Attach a floral stick (or something similar), using floral tape to secure it and adjusting the stick to the height you want your succulent to present in your bouquet.
Step 4: Assuming you want some non-succulents in the mix, create a bouquet of choice flowers. If you're not sure on what flowers to use, take advice from Simon Richards, M&S floral guru: “Two simple rules are to either combine tonal shades of one color or choose vibrant clashes such as cerise, purple, and yellow.”
Step 5: Secure the bouquet with more floral tape, starting from the topmost part of the bouquet. Apply thicker tape as you approach the end of the arrangement.
Another tip: Try to create a balanced look. If you're using both succulents and non-succulents, the number of succulents should not overshadow the number of flowers. Nor would a single succulent be advisable, since other flowers would dwarf it. Succulents with rosette shapes are particularly lovely--echeverias, ghost plants, and the like.
Here are some gorgeous examples of succulent bouquets on Pinterest.