Showtec mini snow machine, a little noisy but very effective:
Snow Master T1600 Evaporative snow machine

Showtec snow fluid 5 ltr (sale)

Fluid Snow Master 4 US gallons (sale)

                          Snow Master                                                        Showtec Mini                       

PW + VAT

£  10.00

£125.00

£  11.99

£  34.03