You have snow mobiles in the Coll de la Botella area of Pal. You need to ski to get to the area, and if from Arinsal taking the cable car from Arinsal or take a taxi form your resort.
The last prices I know of are for 1 or 2 people together.
15mins = €30
30mins = €50
60mins = €85
You can book when you get here at the Vallnord information office at the top of the gondola in Arinsal or in the Pal area at the top of the La Massana gondola in the information office.