Titanium code sample that uses pickers to randomly select 3 values and display them side by side. iOS only(for now). You can do whatever you like with this code.

slotMachine.js

var win1 = Titanium.UI.createWindow({  
    backgroundColor:'black',
    layout: 'vertical',
    fullscreen: true,
    width: Ti.Platform.displayCaps.platformWidth,
    height: Ti.Platform.displayCaps.platformHeight
});

//Create window that will contain the picker
var pickerView = Ti.UI.createView({
  backgroundColor:'white',
    width: Ti.Platform.displayCaps.platformWidth,
    height: Ti.UI.SIZE
});
win1.add(pickerView);

var picker = Ti.UI.createPicker({selectionIndicator: true, useSpinner:true});

var columnArr = [];

//Add the Titles of the picker rows
var rows = ['Pedro','Shak','Mauro','Eduardo','Jamie','Daniel','Betty','Davide','Carter'];

//Systematically add all the values to the picker
for (i = 0; i < 3; i++){
		var column = Ti.UI.createPickerColumn();
	for(x = 0; x < rows.length; x++){
		column.addRow(Ti.UI.createPickerRow({title: rows[x]}));
	};
	columnArr.push(column);
};

picker.add(columnArr);
pickerView.add(picker);

var uiView = Ti.UI.createView({
	backgroundColor:'grey',
    width: Ti.Platform.displayCaps.platformWidth,
    height: Ti.UI.FILL
});
win1.add(uiView);

var spinButton = Ti.UI.createButton({
	title: 'SPIN!',
	height: Ti.Platform.displayCaps.platformHeight * 0.3,
	width: Ti.Platform.displayCaps.platformWidth * 0.9
});

//On click spin the pickers up and down and then randomly with delays between.
spinButton.addEventListener('click', function(){
	spinButton.touchEnabled = 'false';
	setTimeout(spinDown, 500);
	setTimeout(spinUp, 1000);
	setTimeout(spinDown, 1500);
	setTimeout(spin, 2000);
	setTimeout(	spinButton.touchEnabled = 'true', 2500);	
});

//Spin the picker to the first positions
function spinUp(){
	picker.setSelectedRow(0, 0, true);
	picker.setSelectedRow(1, 0, true);
	picker.setSelectedRow(2, 0, true);
};

//Spin the picker to the last positions
function spinDown(){
	picker.setSelectedRow(0, 8, true);
	picker.setSelectedRow(1, 8, true);
	picker.setSelectedRow(2, 8, true);	
};

//Spin the picker to random positions
function spin(){
	picker.setSelectedRow(0, Math.floor(Math.random()*9), true),
	picker.setSelectedRow(1, Math.floor(Math.random()*9), true);
	picker.setSelectedRow(2, Math.floor(Math.random()*9), true);
	
};

uiView.add(spinButton);
win1.open();