You can add emoticons to the CKEditor by editing the file
~\CMSAdminControls\CKeditor\config.js (Kentico CMS 6.x), and adding the value 'Smiley' to the toolbar you wish to display the emoticons. Please see the example below:
config.toolbar_Full = config.toolbar_Default =
[
['Source', '-'],
['Cut', 'Copy', 'Paste', 'PasteText', 'PasteFromWord', 'SpellChecker', 'Scayt', '-'],
['Undo', 'Redo', 'Find', 'Replace', 'RemoveFormat', '-'],
['Bold', 'Italic', 'Underline', 'Strike', 'Subscript', 'Superscript', '-'],
['NumberedList', 'BulletedList', 'Outdent', 'Indent', 'Blockquote', 'CreateDiv', '-'],
['JustifyLeft', 'JustifyCenter', 'JustifyRight', 'JustifyBlock', '-'],
['InsertLink', 'Unlink', 'Anchor', '-'],
['InsertImageOrMedia', 'QuicklyInsertImage', 'Table', 'HorizontalRule', 'SpecialChar', 'Smiley', '-'],
['InsertForms', 'InsertInlineControls', 'InsertPolls', 'InsertRating', 'InsertYouTubeVideo', 'InsertWidget'],
'/',
['Styles', 'Format', 'Font', 'FontSize'],
['TextColor', 'BGColor', '-'],
['Maximize', 'ShowBlocks']
];
-eh-