Do you know Lego MindStorms ? The last one is the Ev3 serie (http://www.lego.com/fr-fr/mindstorms/). One particularity of this version compared to the previous ones is the possibility to plug a Wifi key and connect via TCP.

So, if you have this material (one Mindstorms Ev3, one compatible Wifi key), you can control your robot with Pharo !

Just load these lines:

Gofer it
     url: 'http://smalltalkhub.com/mc/JLaval/JetStorm/main'      username: ''
     password: '';
     package: 'ConfigurationOfJetStorm';
     load.
(Smalltalk at: #ConfigurationOfJetStorm) loadBleedingEdge.

I know also that for Christmas, it is not possible to learn a new API, we all have a lot of other things to do ! So, you can play with it into Phratch.

For that, just load Phratch and the package EV3Phratch as follow.

Gofer it
       url: 'http://smalltalkhub.com/mc/JLaval/Phratch/main'        username: ''
       password: '';
       package: 'ConfigurationOfPhratch';
       load.
(Smalltalk at: #ConfigurationOfPhratch) loadBleedingEdge.

Gofer it
       url: 'http://smalltalkhub.com/mc/JLaval/JetStorm/main'        username: ''
       password: '';
       package: 'EV3Phratch';
       load.

Have fun !