You can brush them with shortening or carefully use a hair dryer (one that's used only for cakes, of course) or heat lamp to bring out the shine. Some people use a spray-on coating but IMO that's like putting wood varnish on.
Sorry I never responded. I'm not exatly sure. Just anywhere they sell small clothes steamers. Looks like you can get some compact ones for $20-$25 on amazon. com.