Ubercart

           $node             =  new StdClass();
           $node->type       = 'product';
           $node->status     =  1;
           $node->title      = $item->getTitle();
           $node->image      = $image_url;
           $node->sell_price = $product_price;
           $node->body       = 'Body: for $product_name';
           node_save($node);

           $node_id = $node->nid;

        if  ($node_id > 0) {
           list ($ret, $thumbnail_list) = GalleryCoreApi::
                        fetchThumbnailsByItemIds(array($entity_id));
           $thumbnail_item = $thumbnail_list[$entity_id];
           $thumbnail_url  = $urlGenerator->
              generateUrl(array_merge(
                             array('view'   => 'core.DownloadItem',
                                   'itemId' => $thumbnail_item->getId()
                                  ),
                             array()
                                     ),
                          array('forceSessionId' => false,
                                'forceFullUrl'   => true,
                                'htmlEntities'   => false
                         )     );

           $data = array( 'module'        => 'commerceclasses',
                          'entity-id'     => $entity_id,
                          'model'         => $purchase_id,
                          'name'          => $names,
                          'prices'        => $prices,
                          'thumbnail-url' => $thumbnail_url
                        );
           $num_options = count(explode(';', $names));
           for ($indx=1; $indx<=$num_options; $indx++) {
              $data['attributes'][$indx] = $indx;
           }

           uc_cart_add_item($node_id, 1, $data);
        }

         $item->cost   += $total_cost;
         $item->price  += $total_price;
         $item->weight += $total_weight;

         if  (! empty($item->data['model'])) {
             $item->model = $item->data['model'];
         }
        break;
    }
}

function get_commerceclasses_cart_options($item) {
    $options = array();
    $names   = explode(';', $item->data['names']);
    $prices  = explode(';', $item->data['prices']);
    $aid = 1;
    foreach ($names as $indx => $name) {
       $options[$aid] = array('attributes' => 'Option',
                              'nid'        => $item->nid,
                              'oid'        => $aid,
                              'aid'        => $aid,
                              'name'       => $name,
                              'cost'       =>  0,
                              'price'      => $prices[$indx],
                              'weight'     =>  0,
                             );
       $aid++;
    }

    return $options;
}