The 2018 Halstead Design Challenge “Hidden” asked artists to play with the ideas of secrecy and mystery to create a brooch or convertible pendant constructed primarily from materials in the Halstead challenge kit. A juried selection from all entries was exhibited during the SNAG Portland, Oregon conference in May 2018 and online afterwards.
| Date | May 2018 |
| Location | Portland, OR & On-line |
| Host | SNAG |