Check out ScriptingRT (http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0067769) , or there is an online modifiable/personalizable IAT (https://github.com/winteram/IAT).
Check out semantic priming tasks, such as the semantic Stroop priming task, e.g. [1][2]
[1] Sparrow, B., Liu, J., and Wegner, D.M. Google effects on memory: cognitive consequences of having information at our fingertips. Science (New York, N.Y.) 333, 6043 (2011), 776–8.
[2] Schmettow, M., Noordzij, M.L., and Mundt, M. An implicit test of UX: Individuals Differ in What They Associate with Computers. CHI ’13 Extended Abstracts on Human Factors in Computing Systems on - CHI EA '13, ACM Press (2013), 2039 – 2048.
I think you need to be careful Sarah, since there's pretty good evidence that the IAT (which most measures will be a version of) doesn't actually measure implicit attitudes.
Kinoshita, S., & Peek-O'Leary, M. (2006). Two bases of compatibility effect in the Implicit Association Test (IAT). Quarterly Journal of Experimental Psychology, 59A(12), 2102-2120.
Kinoshita, S., & Peek-O'Leary, M. (2005). Does the Compatibility Effect in the Race Implicit Association Test (IAT) Reflect Familiarity or Affect? Psychonomic Bulletin & Review, 12, 442-452.