I think I suggested this years ago, paid lockers in the old ticket booth. Otherwise, you could hire pro pick pockets to get cell phones and it's another $12 admission fee to go through the whole place to find it.
After their 4th paid tour, oh look! is this yours?
Or, you could have a cell phone store up the alley? Sorry you missed yours, you can get another one over there, I think they have used ones you can transfer you number to!?! They're only $149 with a contract!
Another fabulous post from the U.S.Department of Wild Imaginings, now in spectaclar stereo, sponsored by the Adhesives and Sealants Council, suggesting ways to stick things together since the 1800s. Not fabulous in a gay way. Your results may vary. Illinois residents add 8% sales tax. These posts have been made by professional post makers, do not try this type of posting on your own without extensive training, lovely assistants and a trusty clown horn.