I\'ve made some very small pressmold type things out of putty, aluminum and copper rod. For rivets I just drilled a shallow \'dimple\' in the end with a very tiny drill. For bolts sculpt a bolt the size you want, make a little ball of clay and press it on. Once you take it off, trim the edges and attach it to a stick. Put tiny bit\'s of clay wherever you want rivets or bolts and gently press them on with your finger. Wait about 10 minutes for that to get a good grip on whatever you\'re working on, coat it with baby powder, blow off the excess and just press. It\'s important to get the size of the initial bit of clay pretty close to the size of the bolt or rivet. If you use too much by the time you\'ve squished all the excess out while pressing, the baby powder is too dispersed to act as a release. Takes a bit of practice but I can now do this WAAAAAYYY faster than cutting and gluing all them freakin\' little bits!!