above the grip 3 the half shell 1a of the pistol defines a reservoir 13 for a liquid effective to form bubbles of the type of soap bubbles the reservoir 13 is open at the top and has a rear portion 13a of greater depth this rear portion accommodates a bubble blowing ring 14 of the type effective to withhold said liquid by capillary action such as to issue trains of bubbles the reservoir 13 is closed at the top excepting for the rear portion 13a by a cover or lid 15 which is pressure applied that portion is in turn closed by a cap 16 which partly overlaps the cover 15 and to which the blowing ring 14 is attached through a small rod 17 the cap 16 also defines a centrally located sight 18 for the pistol the cap 16 can be raised by means of a shank 19 together with the blowing ring 14 the shank 19 which is arranged vertically on the side of the pistol grip 3 corresponding to the left hand part 1b is secured to the cap or plug 16 at its top end its bottom end being provided with a button 20 for raising it the shank 19 is guided at its upper portion between a recess 21 in the wall of the reservoir 13 and the half shell 1b at the bottom it slides in a cutout 22 on the wall of the grip 3 in which cutout it is slidably guided by means of two related side grooves 20a in the button 20 thus the button 20 is partly within and partly without the grip.