Limited Time Only! $99 Summertime Private Party Special! A party of up to 8 guests and $15 for each additional guest (a $160 Value). Offer ends August 31, 2012. Regular pricing, $20 per guest, the birthday child is free with a party of 8 or more guests. The party will last about 2 ½ hours and each child will come home with a beautiful painting he/she created on a 11 x 14 canvas. You can upgrade to an 16 x 20 canvas for $2.00 more per guest.